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Conserved domains on  [gi|128239|sp|P07328|]
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RecName: Full=Nitrogenase molybdenum-iron protein alpha chain; AltName: Full=Dinitrogenase; AltName: Full=Nitrogenase component I

Protein Classification

nitrogenase molybdenum-iron protein alpha chain( domain architecture ID 10018774)

nitrogenase molybdenum-iron protein alpha chain is a molybdenum-iron protein which is part of the nitrogenase complex that catalyzes the key enzymatic reactions in nitrogen fixation

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
nifD TIGR01282
nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta ...
12-479 0e+00

nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta (NifK) subunits of the molybdenum-iron protein and an ATP-binding iron-sulfur protein (NifH). This model describes a large clade of NifD proteins, but excludes a lineage that contains putative NifD and NifD homologs from species with vanadium-dependent nitrogenases. [Central intermediary metabolism, Nitrogen fixation]


:

Pssm-ID: 162284  Cd Length: 466  Bit Score: 978.00  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      12 LIQEVLEVYPEKARKDRNKHLAVNDPAvTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQY 91
Cdd:TIGR01282   1 LIDEVLEVYPEKAAKKRSKHLVVNEPE-GKSDCGVKSNIKSVPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQY 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      92 SRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKG 171
Cdd:TIGR01282  80 SWGGRRNYYKGETGVDNFGTMQFTSDFQEKDIVFGGDKKLKKAIDEIEELFPLNKGISIQSECPVGLIGDDIEAVAKKAS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     172 AELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDEDTtFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVA 251
Cdd:TIGR01282 160 KELGKPVVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKGDKEK-FEPTPYDVAIIGDYNIGGDAWESRILLEEIGLRVVA 238
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     252 QWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKY 331
Cdd:TIGR01282 239 QWSGDGTLNEMENAPKAKLNLIHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKIAESLRKIAEFFDDEIKEKAEEVIAKY 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     332 KPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEE 411
Cdd:TIGR01282 319 QPAVDAVIAKYRPRLEGKTVMLYVGGLRPRHVIGAFEDLGMEVIGTGYEFAHNDDYERTTKYMKDGTLIYDDVTHYEFEE 398
                         410       420       430       440       450       460
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 128239     412 FVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQAPW 479
Cdd:TIGR01282 399 FVEKLKPDLVGSGIKEKYVFQKMGVPFRQMHSWDYSGPYHGYDGFAIFARDMDMALNSPTWKLIKAPW 466
 
Name Accession Description Interval E-value
nifD TIGR01282
nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta ...
12-479 0e+00

nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta (NifK) subunits of the molybdenum-iron protein and an ATP-binding iron-sulfur protein (NifH). This model describes a large clade of NifD proteins, but excludes a lineage that contains putative NifD and NifD homologs from species with vanadium-dependent nitrogenases. [Central intermediary metabolism, Nitrogen fixation]


Pssm-ID: 162284  Cd Length: 466  Bit Score: 978.00  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      12 LIQEVLEVYPEKARKDRNKHLAVNDPAvTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQY 91
Cdd:TIGR01282   1 LIDEVLEVYPEKAAKKRSKHLVVNEPE-GKSDCGVKSNIKSVPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQY 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      92 SRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKG 171
Cdd:TIGR01282  80 SWGGRRNYYKGETGVDNFGTMQFTSDFQEKDIVFGGDKKLKKAIDEIEELFPLNKGISIQSECPVGLIGDDIEAVAKKAS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     172 AELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDEDTtFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVA 251
Cdd:TIGR01282 160 KELGKPVVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKGDKEK-FEPTPYDVAIIGDYNIGGDAWESRILLEEIGLRVVA 238
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     252 QWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKY 331
Cdd:TIGR01282 239 QWSGDGTLNEMENAPKAKLNLIHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKIAESLRKIAEFFDDEIKEKAEEVIAKY 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     332 KPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEE 411
Cdd:TIGR01282 319 QPAVDAVIAKYRPRLEGKTVMLYVGGLRPRHVIGAFEDLGMEVIGTGYEFAHNDDYERTTKYMKDGTLIYDDVTHYEFEE 398
                         410       420       430       440       450       460
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 128239     412 FVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQAPW 479
Cdd:TIGR01282 399 FVEKLKPDLVGSGIKEKYVFQKMGVPFRQMHSWDYSGPYHGYDGFAIFARDMDMALNSPTWKLIKAPW 466
Nitrogenase_MoFe_alpha cd01976
Nitrogenase_MoFe_alpha_II: Nitrogenase MoFe protein, beta subunit. A group of proteins similar ...
46-469 0e+00

Nitrogenase_MoFe_alpha_II: Nitrogenase MoFe protein, beta subunit. A group of proteins similar to the alpha subunit of the MoFe protein of the molybdenum (Mo-) nitrogenase. The nitrogenase enzyme catalyzes the ATP-dependent reduction of dinitrogen to ammonia. The Mo-nitrogenase is the most widespread and best characterized of these systems. Mo-nitrogenase consists of the MoFe protein (component 1) and the Fe protein (component 2). MoFe is an alpha2beta2 tetramer. Each alphabeta pair of MoFe contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein contains a single [4Fe-4S] cluster. Electrons are transferred from the [4Fe-4S] cluster of the Fe protein to the P-cluster of the MoFe and in turn to FeMoCo, the site of substrate reduction.


Pssm-ID: 238935 [Multi-domain]  Cd Length: 421  Bit Score: 891.30  E-value: 0e+00
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    46 IISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVF 125
Cdd:cd01976   1 IKSNIKSVPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQYSWATRRNYYRGETGVDNFGTMQFTTDFQEKDIVF 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   126 GGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDW 205
Cdd:cd01976  81 GGDKKLAKAIDEAYELFPLNKGISVQSECPVGLIGDDIEAVARKASKELGIPVVPVRCEGFRGVSQSLGHHIANDAIRDH 160
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   206 VLGKRDEdttFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRH 285
Cdd:cd01976 161 ILGKRNE---FEPTPYDVNIIGDYNIGGDAWASRILLEEMGLRVVAQWSGDGTLNEMENAHKAKLNLIHCYRSMNYIARM 237
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   286 MEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIG 365
Cdd:cd01976 238 MEEKYGIPWMEYNFFGPTKIAESLRKIAAYFDDEITAKTEEVIAEYKPAMEAVIAKYRPRLEGKTVMLYVGGLRPRHYIG 317
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   366 AYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWD 445
Cdd:cd01976 318 AYEDLGMEVVGTGYEFAHRDDYERTEVIPKEGTLLYDDVTHYELEEFVKRLKPDLIGSGIKEKYVFQKMGIPFRQMHSWD 397
                       410       420
                ....*....|....*....|....
gi 128239   446 YSGPYHGFDGFAIFARDMDMTLNN 469
Cdd:cd01976 398 YSGPYHGFDGFAIFARDMDMAINS 421
NifD/CfbD COG2710
Nitrogenase Mo-Fe protein NifD/coenzyme F430 biosynthesis subunit CfbD [Coenzyme transport and ...
49-473 1.23e-159

Nitrogenase Mo-Fe protein NifD/coenzyme F430 biosynthesis subunit CfbD [Coenzyme transport and metabolism, Inorganic ion transport and metabolism];


Pssm-ID: 442027 [Multi-domain]  Cd Length: 416  Bit Score: 458.81  E-value: 1.23e-159
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    49 NKKSQpGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIgttgvnaFVTMNFTSDFQEKDIVFGGD 128
Cdd:COG2710   1 NRKAL-GVNPAKGCQPLGAK-LALLGIKDAIPLVHGSQGCAAYSRVTRGRHFK-------EPIPLFSTDMTEDDVVFGGE 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   129 KKLAKLIDEVETLFpLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLG 208
Cdd:COG2710  72 KNLEEAIKNIIERY-KPKLIFVYTTCLTETIGDDIEAVIKEAREELGIPVVPVSTPGFVG-SHSTGYHIAVEAIVEQLVG 149
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   209 KRDEdttfaSTPYDVAIIGDYN-IGGDAWSSRILLEEMGLRCVAQWS-GDGSISEIELTPKVKLNLVHCYRSMNYISRHM 286
Cdd:COG2710 150 TGEP-----KTPGKINLIGGYNlIPGDLWEIKRLLEEMGLRVIALPDlGGTTVEEIADAGRAKLNLVLCSRSGNYAARYL 224
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   287 EEKYGIPWME-YNFFGPTKTIESLRAIAAKFDESIqkkcEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIG 365
Cdd:COG2710 225 EEKYGIPYLEfVSPIGLEATDEFLRKLAELFGKPV----PEVIARERGRLVDALADYHFYLGGKKVAIYGDPDLLWGLAS 300
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   366 AYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTL--LYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHS 443
Cdd:COG2710 301 FLLELGMEPVAAVTTTGSPEDYERIKELLEELPEgtVIDDGDLEELEELLKELKPDLLIGGSKGKYLARKLGIPLLRVGF 380
                       410       420       430
                ....*....|....*....|....*....|....*.
gi 128239   444 WDY------SGPYHGFDGFAIFARDMDMTLNNPCWK 473
Cdd:COG2710 381 PIYdrvglqRRPYAGYRGALNLLEDIANALLSPVWE 416
Oxidored_nitro pfam00148
Nitrogenase component 1 type Oxidoreductase;
62-468 2.34e-116

Nitrogenase component 1 type Oxidoreductase;


Pssm-ID: 395096 [Multi-domain]  Cd Length: 398  Bit Score: 348.08  E-value: 2.34e-116
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      62 CAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYigttgvNAFVTMnFTSDFQEKDIVFGGDKKLAKLIDEVETL 141
Cdd:pfam00148   1 CAPAGAS-VALLGIKDAVPLVHGPQGCATYVRLLLTRHF------REPIPL-ATTSLTEKDVVFGGEENLKEAIKEVDKR 72
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     142 F-PlnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDEDTtfastP 220
Cdd:pfam00148  73 YkP--KAIFVISTCLTETIGDDIEAVAREAREELGIPVIPVSTPGFVG-SHSTGYDVALEAIVRQLVGKKGEKE-----P 144
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     221 YDVAIIGDYNIG-GDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEY-N 298
Cdd:pfam00148 145 GTVNILGGFNLGpGDLREIKRLLEKLGIEVNPVFTGGTTLEDLRAAGNAAANLVLCPFSGEYAAEMLEEKFGVPYIRLgA 224
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     299 FFGPTKTIESLRAIAAKFDESIqkkCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTG 378
Cdd:pfam00148 225 PIGLEATDRFLRALAKLFGKEV---APEVIARERGRLLDAMVDYHEYLAGKRVAIYGDPDLVLGLARFLLELGMEPVAVG 301
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     379 YEFAHNDDYDRTMKEMGDST-LLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKM-------GIPFREMHSWDYsGPY 450
Cdd:pfam00148 302 TGTGHPDDYERLKAELEEGDpEVIDGADLEELEELIKELKPDLLLGNSKGRYIARKLgiplvrvGFPIVDRHGLHR-RPY 380
                         410
                  ....*....|....*...
gi 128239     451 HGFDGFAIFARDMDMTLN 468
Cdd:pfam00148 381 VGYRGALNLADRIANALL 398
PRK14477 PRK14477
bifunctional nitrogenase molybdenum-cofactor biosynthesis protein NifE/NifN; Provisional
50-492 3.46e-103

bifunctional nitrogenase molybdenum-cofactor biosynthesis protein NifE/NifN; Provisional


Pssm-ID: 172952 [Multi-domain]  Cd Length: 917  Bit Score: 329.01  E-value: 3.46e-103
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     50 KKSQPGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTgvnaFVTMNFTSDFQEKDIVFGGDK 129
Cdd:PRK14477  24 KKSEPGEGAERSCAYDGAR-VVLMPITDVIHLVHGPIACAGNSWDNRGARSSGSQ----LYRRGFTTEMLENDVIFGGEK 98
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    130 KLAKLIDEVETLFPlNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGK 209
Cdd:PRK14477  99 KLYRAILELAERYQ-PKAVFVYATCVTALTGDDVEAVCKAAAEKVGIPVIPVNTPGFIG-DKNIGNRLAGEALLKHVIGT 176
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    210 RDEDTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEK 289
Cdd:PRK14477 177 AEPEVT---TPYDINLIGEYNIAGDLWGMLPLFDRLGIRVLSCISGDAKFEELRYAHRAKLNVIICSKSLTNLARKMEKR 253
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    290 YGIPWMEYNFFGPTKTIESLRAIAAKFDES--------IQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPR 361
Cdd:PRK14477 254 YGIPYLEESFYGMTDTAKALRDIARELDDAggglekrvLQDRVEKLIAEEEAKCRAALAPYRARLEGKRVVLFTGGVKTW 333
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    362 HVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREM 441
Cdd:PRK14477 334 SMVNALRELGVEVLAAGTQNSTLEDFARMKALMHKDAHIIEDTSTAGLLRVMREKMPDLIVAGGKTKFLALKTRTPFLDI 413
                        410       420       430       440       450
                 ....*....|....*....|....*....|....*....|....*....|...
gi 128239    442 HSwDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQ--APWEASEGAEKVAASA 492
Cdd:PRK14477 414 NH-GRSHPYAGYEGMVTFARQLDLTVNNPIWPALRapAPWEKGAGELRADLAL 465
 
Name Accession Description Interval E-value
nifD TIGR01282
nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta ...
12-479 0e+00

nitrogenase molybdenum-iron protein alpha chain; Nitrogenase consists of alpha (NifD) and beta (NifK) subunits of the molybdenum-iron protein and an ATP-binding iron-sulfur protein (NifH). This model describes a large clade of NifD proteins, but excludes a lineage that contains putative NifD and NifD homologs from species with vanadium-dependent nitrogenases. [Central intermediary metabolism, Nitrogen fixation]


Pssm-ID: 162284  Cd Length: 466  Bit Score: 978.00  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      12 LIQEVLEVYPEKARKDRNKHLAVNDPAvTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQY 91
Cdd:TIGR01282   1 LIDEVLEVYPEKAAKKRSKHLVVNEPE-GKSDCGVKSNIKSVPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQY 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      92 SRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKG 171
Cdd:TIGR01282  80 SWGGRRNYYKGETGVDNFGTMQFTSDFQEKDIVFGGDKKLKKAIDEIEELFPLNKGISIQSECPVGLIGDDIEAVAKKAS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     172 AELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDEDTtFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVA 251
Cdd:TIGR01282 160 KELGKPVVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKGDKEK-FEPTPYDVAIIGDYNIGGDAWESRILLEEIGLRVVA 238
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     252 QWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKY 331
Cdd:TIGR01282 239 QWSGDGTLNEMENAPKAKLNLIHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKIAESLRKIAEFFDDEIKEKAEEVIAKY 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     332 KPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEE 411
Cdd:TIGR01282 319 QPAVDAVIAKYRPRLEGKTVMLYVGGLRPRHVIGAFEDLGMEVIGTGYEFAHNDDYERTTKYMKDGTLIYDDVTHYEFEE 398
                         410       420       430       440       450       460
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 128239     412 FVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQAPW 479
Cdd:TIGR01282 399 FVEKLKPDLVGSGIKEKYVFQKMGVPFRQMHSWDYSGPYHGYDGFAIFARDMDMALNSPTWKLIKAPW 466
Nitrogenase_MoFe_alpha cd01976
Nitrogenase_MoFe_alpha_II: Nitrogenase MoFe protein, beta subunit. A group of proteins similar ...
46-469 0e+00

Nitrogenase_MoFe_alpha_II: Nitrogenase MoFe protein, beta subunit. A group of proteins similar to the alpha subunit of the MoFe protein of the molybdenum (Mo-) nitrogenase. The nitrogenase enzyme catalyzes the ATP-dependent reduction of dinitrogen to ammonia. The Mo-nitrogenase is the most widespread and best characterized of these systems. Mo-nitrogenase consists of the MoFe protein (component 1) and the Fe protein (component 2). MoFe is an alpha2beta2 tetramer. Each alphabeta pair of MoFe contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein contains a single [4Fe-4S] cluster. Electrons are transferred from the [4Fe-4S] cluster of the Fe protein to the P-cluster of the MoFe and in turn to FeMoCo, the site of substrate reduction.


Pssm-ID: 238935 [Multi-domain]  Cd Length: 421  Bit Score: 891.30  E-value: 0e+00
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    46 IISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVF 125
Cdd:cd01976   1 IKSNIKSVPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQYSWATRRNYYRGETGVDNFGTMQFTTDFQEKDIVF 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   126 GGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDW 205
Cdd:cd01976  81 GGDKKLAKAIDEAYELFPLNKGISVQSECPVGLIGDDIEAVARKASKELGIPVVPVRCEGFRGVSQSLGHHIANDAIRDH 160
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   206 VLGKRDEdttFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRH 285
Cdd:cd01976 161 ILGKRNE---FEPTPYDVNIIGDYNIGGDAWASRILLEEMGLRVVAQWSGDGTLNEMENAHKAKLNLIHCYRSMNYIARM 237
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   286 MEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIG 365
Cdd:cd01976 238 MEEKYGIPWMEYNFFGPTKIAESLRKIAAYFDDEITAKTEEVIAEYKPAMEAVIAKYRPRLEGKTVMLYVGGLRPRHYIG 317
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   366 AYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWD 445
Cdd:cd01976 318 AYEDLGMEVVGTGYEFAHRDDYERTEVIPKEGTLLYDDVTHYELEEFVKRLKPDLIGSGIKEKYVFQKMGIPFRQMHSWD 397
                       410       420
                ....*....|....*....|....
gi 128239   446 YSGPYHGFDGFAIFARDMDMTLNN 469
Cdd:cd01976 398 YSGPYHGFDGFAIFARDMDMAINS 421
N2-ase-Ialpha TIGR01862
nitrogenase component I, alpha chain; This model represents the alpha chain of all three ...
27-474 0e+00

nitrogenase component I, alpha chain; This model represents the alpha chain of all three varieties (Mo-Fe, V-Fe, and Fe-Fe) of component I of nitrogenase. [Central intermediary metabolism, Nitrogen fixation]


Pssm-ID: 273838  Cd Length: 443  Bit Score: 754.67  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      27 DRNKHLAVNDPAVTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGV 106
Cdd:TIGR01862   1 DRKKHIVVKDPGETQSEKLPIANTKTIPGLMTERGCAYAGAKGVIGGPIKDMIHISHGPVGCTYYTWGTKRYPSDNENGV 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     107 NAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGF 186
Cdd:TIGR01862  81 GAFLKYVFSTDMQESDIVFGGEKKLKKLIHEAFTEFPLIKAISVYATCPTGLIGDDIEAVAKEVSKEIGKDVVAVNCPGF 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     187 RGVSQSLGHHIANDAVRDWVLGKRDEDTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTP 266
Cdd:TIGR01862 161 AGVSQSKGHHIANIAVINDKVGTREKEIT---TEYDVNIIGEYNIGGDAWVMRIYLEEMGIQVVATFTGDGTYDEIRLMH 237
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     267 KVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDesIQKKCEEVIAKYKPEWEAVVAKYRPRL 346
Cdd:TIGR01862 238 KAKLNLVHCARSANYIANELEERYGIPWMKIDFFGFTYTAESLRAIAAFFG--IEKRAEEVIAEEKAKWKPELDYYKERL 315
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     347 EGKRVMLYIGGLRPRHVIG-AYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGI 425
Cdd:TIGR01862 316 QGKRVCLYIGGSRLWHWIGsAEEDLGMEVVAVGYEFAHEDDYEKTMKRMGEGTLLIDDPNELEFEEILEKLKPDIIFSGI 395
                         410       420       430       440
                  ....*....|....*....|....*....|....*....|....*....
gi 128239     426 KEKFIFQKMGIPFREMHSWDYsGPYHGFDGFAIFARDMDMTLNNPCWKK 474
Cdd:TIGR01862 396 KEKFVAQKLGVPYRQMHSYDN-GPYHGFEGFVNFARDMYNAIYNPCWKL 443
Nitrogenase_MoFe_alpha_like cd01967
Nitrogenase_MoFe_alpha_like: Nitrogenase MoFe protein, alpha subunit_like. The nitrogenase ...
54-469 0e+00

Nitrogenase_MoFe_alpha_like: Nitrogenase MoFe protein, alpha subunit_like. The nitrogenase enzyme catalyzes the ATP-dependent reduction of dinitrogen to ammonia. Three genetically distinct types of nitrogenase systems are known to exist: a molybdenum-dependent nitrogenase (Mo-nitrogenase), a vanadium dependent nitrogenase (V-nitrogenase), and an iron-only nitrogenase (Fe-nitrogenase). These nitrogenase systems consist of component 1 (MoFe protein, VFe protein or, FeFe protein respectively) and, component 2 (Fe protein). This group contains the alpha subunit of component 1 of all three different forms. The most widespread and best characterized of these systems is the Mo-nitrogenase. MoFe is an alpha2beta2 tetramer, the alternative nitrogenases are alpha2beta2delta2 hexamers having alpha and beta subunits similar to the alpha and beta subunits of MoFe. The role of the delta subunit is unknown. For MoFe, each alphabeta pair of subunits contains one P-cluster (located at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein is a homodimer which contains, a single [4Fe-4S] cluster from which electrons are transferred to the P-cluster of the MoFe and in turn, to FeMoCo the site of substrate reduction. The V-nitrogenase requires an iron-vanadium cofactor (FeVco), the iron only-nitrogenase an iron only cofactor (FeFeco). These cofactors are analogous to the FeMoco. The V-nitrogenase has P clusters identical to those of MoFe. In addition to N2, nitrogenase also catalyzes the reduction of a variety of other substrates such as acetylene The V-nitrogenase differs from the Mo- nitrogenase in that it produces free hydrazine, as a minor product during dinitrogen reduction and, ethane as a minor product during acetylene reduction.


Pssm-ID: 238929 [Multi-domain]  Cd Length: 406  Bit Score: 643.12  E-value: 0e+00
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    54 PGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGvnaFVTMNFTSDFQEKDIVFGGDKKLAK 133
Cdd:cd01967   1 PGPMTERGCCAFGGAGVVLGPIKDAVHIVHGPIGCAYYTWDTRRNLSSGENL---FYKYGFSTDMQEKDIVFGGEKKLKK 77
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   134 LIDEVETLFPLnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDED 213
Cdd:cd01967  78 AIKEAYERFPP-KAIFVYSTCPTGLIGDDIEAVAKEASKELGIPVIPVNCEGFRGVSQSLGHHIANDAILDHLVGTKEPE 156
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   214 TTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIP 293
Cdd:cd01967 157 EK---TPYDVNIIGEYNIGGDAWVIKPLLEELGIRVNATFTGDGTVDELRRAHRAKLNLVHCSRSMNYLAREMEERYGIP 233
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   294 WMEYNFFGPTKTIESLRAIAAKFDesIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGME 373
Cdd:cd01967 234 YMEVNFYGFEDTSESLRKIAKFFG--DEEKAEEVIAEEEARIKPELEKYRERLKGKKVIIYTGGARSWHVIAALRELGME 311
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   374 VVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDySGPYHGF 453
Cdd:cd01967 312 VVAAGYEFGHDDDYERIRKILDEGTLLVDDYNDLELEELVEKLKPDLILSGIKEKYVAQKLGIPFLDLHSER-NGPYAGY 390
                       410
                ....*....|....*.
gi 128239   454 DGFAIFARDMDMTLNN 469
Cdd:cd01967 391 EGFLNFARDIDTALNS 406
NifD/CfbD COG2710
Nitrogenase Mo-Fe protein NifD/coenzyme F430 biosynthesis subunit CfbD [Coenzyme transport and ...
49-473 1.23e-159

Nitrogenase Mo-Fe protein NifD/coenzyme F430 biosynthesis subunit CfbD [Coenzyme transport and metabolism, Inorganic ion transport and metabolism];


Pssm-ID: 442027 [Multi-domain]  Cd Length: 416  Bit Score: 458.81  E-value: 1.23e-159
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    49 NKKSQpGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIgttgvnaFVTMNFTSDFQEKDIVFGGD 128
Cdd:COG2710   1 NRKAL-GVNPAKGCQPLGAK-LALLGIKDAIPLVHGSQGCAAYSRVTRGRHFK-------EPIPLFSTDMTEDDVVFGGE 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   129 KKLAKLIDEVETLFpLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLG 208
Cdd:COG2710  72 KNLEEAIKNIIERY-KPKLIFVYTTCLTETIGDDIEAVIKEAREELGIPVVPVSTPGFVG-SHSTGYHIAVEAIVEQLVG 149
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   209 KRDEdttfaSTPYDVAIIGDYN-IGGDAWSSRILLEEMGLRCVAQWS-GDGSISEIELTPKVKLNLVHCYRSMNYISRHM 286
Cdd:COG2710 150 TGEP-----KTPGKINLIGGYNlIPGDLWEIKRLLEEMGLRVIALPDlGGTTVEEIADAGRAKLNLVLCSRSGNYAARYL 224
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   287 EEKYGIPWME-YNFFGPTKTIESLRAIAAKFDESIqkkcEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIG 365
Cdd:COG2710 225 EEKYGIPYLEfVSPIGLEATDEFLRKLAELFGKPV----PEVIARERGRLVDALADYHFYLGGKKVAIYGDPDLLWGLAS 300
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   366 AYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTL--LYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHS 443
Cdd:COG2710 301 FLLELGMEPVAAVTTTGSPEDYERIKELLEELPEgtVIDDGDLEELEELLKELKPDLLIGGSKGKYLARKLGIPLLRVGF 380
                       410       420       430
                ....*....|....*....|....*....|....*.
gi 128239   444 WDY------SGPYHGFDGFAIFARDMDMTLNNPCWK 473
Cdd:COG2710 381 PIYdrvglqRRPYAGYRGALNLLEDIANALLSPVWE 416
Oxidoreductase_nitrogenase cd00316
The nitrogenase enzyme system catalyzes the ATP-dependent reduction of dinitrogen to ammonia. ...
57-468 1.28e-152

The nitrogenase enzyme system catalyzes the ATP-dependent reduction of dinitrogen to ammonia. This group contains both alpha and beta subunits of component 1 of the three known genetically distinct types of nitrogenase systems: a molybdenum-dependent nitrogenase (Mo-nitrogenase), a vanadium-dependent nitrogenase (V-nitrogenase), and an iron-only nitrogenase (Fe-nitrogenase) and, both subunits of Protochlorophyllide (Pchlide) reductase and chlorophyllide (chlide) reductase. The nitrogenase systems consist of component 1 (MoFe protein, VFe protein or, FeFe protein respectively) and, component 2 (Fe protein). The most widespread and best characterized nitrogenase is the Mo-nitrogenase. MoFe is an alpha2beta2 tetramer, the alternative nitrogenases are alpha2beta2delta2 hexamers whose alpha and beta subunits are similar to the alpha and beta subunits of MoFe. For MoFe, each alphabeta pair contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein contains a single [4Fe-4S] cluster from which, electrons are transferred to the P-cluster of the MoFe and in turn, to FeMoCo at the site of substrate reduction. The V-nitrogenase requires an iron-vanadium cofactor (FeVco), the iron only-nitrogenase an iron only cofactor (FeFeco). These cofactors are analogous to the FeMoco. The V-nitrogenase has P clusters identical to those of MoFe. Pchlide reductase and chlide reductase participate in the Mg-branch of the tetrapyrrole biosynthetic pathway. Pchlide reductase catalyzes the reduction of the D-ring of Pchlide during the synthesis of chlorophylls (Chl) and bacteriochlorophylls (BChl). Chlide-a reductase catalyzes the reduction of the B-ring of Chlide-a during the synthesis of BChl-a. The Pchlide reductase NB complex is a an N2B2 heterotetramer resembling nitrogenase FeMo, N and B proteins are homologous to the FeMo alpha and beta subunits respectively. The NB complex may serve as a catalytic site for Pchlide reduction and, the ZY complex as a site of chlide reduction, similar to MoFe for nitrogen reduction.


Pssm-ID: 238193 [Multi-domain]  Cd Length: 399  Bit Score: 440.56  E-value: 1.28e-152
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    57 MTIRGCAYAGSKGVVWGpIKDMIHISHGPVGCGQYSRAGRRNYYigttgvnAFVTMNFTSDFQEKDIVFGG-DKKLAKLI 135
Cdd:cd00316   2 NPAKGCAPLGAARVALG-IKDAIPLVHGPQGCAYFTRLTLRRHF-------KEPIPLFTTSMTEKDVVFGGgEKLLEAII 73
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   136 DEVETLFPlnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDEDTT 215
Cdd:cd00316  74 NELKRYKP--KVIFVYTTCTTELIGDDIEAVAKEASKEIGIPVVPASTPGFRG-SQSAGYDAAVKAIIDHLVGTAEPEET 150
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   216 fasTPYDVAIIGDYNI-GGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPW 294
Cdd:cd00316 151 ---EPGSVNLIGGYNLgGGDLRELKRLLEEMGIRVNALFDGGTTVEELRELGNAKLNLVLCRESGLYLARYLEEKYGIPY 227
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   295 MEYNFFGPTKTIESLRAIAAKFDesIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEV 374
Cdd:cd00316 228 ILINPIGLEATDAFLRKLAELFG--IEKEVPEVIARERARLLDALADYHEYLGGKKVAIFGDGDLLLALARFLLELGMEV 305
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   375 VGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFD 454
Cdd:cd00316 306 VAAGTTFGHKADYERREELLGEGTEVVDDGDLEELEELIRELKPDLIIGGSKGRYIAKKLGIPLVRIGFPIHRRPYVGYE 385
                       410
                ....*....|....
gi 128239   455 GFAIFARDMDMTLN 468
Cdd:cd00316 386 GALNLAEEIANALL 399
Nitrogenase_NifE_I cd01968
Nitrogenase_NifE_I: a subgroup of the NifE subunit of the NifEN complex: NifE forms an ...
54-472 2.10e-128

Nitrogenase_NifE_I: a subgroup of the NifE subunit of the NifEN complex: NifE forms an alpha2beta2 tetramer with NifN. NifE and NifN are structurally homologous to nitrogenase MoFe protein alpha and beta subunits respectively. NifEN participates in the synthesis of the iron-molybdenum cofactor (FeMoco) of the MoFe protein. NifB-co (an iron and sulfur containing precursor of the FeMoco) from NifB is transferred to the NifEN complex where it is further processed to FeMoco. The NifEN bound precursor of FeMoco has been identified as a molybdenum-free, iron- and sulfur- containing analog of FeMoco. It has been suggested that this NifEN bound precursor also acts as a cofactor precursor in nitrogenase systems which require a cofactor other than FeMoco: i.e. iron-vanadium cofactor (FeVco) or iron only cofactor (FeFeco).


Pssm-ID: 238930 [Multi-domain]  Cd Length: 410  Bit Score: 379.36  E-value: 2.10e-128
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    54 PGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYS---RAGRrnyyigTTGVNAFvTMNFTSDFQEKDIVFGGDKK 130
Cdd:cd01968   2 PGGVTQRGCVFDGAR-VVLMPITDAAHLVHGPIGCAGYSwdiRGSR------SSGSELY-RMGFSTDLSEKDVIFGGEKK 73
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   131 LAKLIDE-VETLFPlnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGK 209
Cdd:cd01968  74 LYKAILEiIERYHP--KAVFVYSTCVVALIGDDIDAVCKTASEKFGIPVIPVHSPGFVG-NKNLGNKLACEALLDHVIGT 150
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   210 RDEDTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEK 289
Cdd:cd01968 151 EEPEPL---TPYDINLIGEFNVAGELWGVKPLLEKLGIRVLASITGDSRVDEIRRAHRAKLNVVQCSKSMIYLARKMEEK 227
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   290 YGIPWMEYNFFGPTKTIESLRAIAAKF-DESIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYE 368
Cdd:cd01968 228 YGIPYIEVSFYGIRDTSKSLRNIAELLgDEELIERTEELIAREEARLRPELAPYRARLEGKKAALYTGGVKSWSLVSALQ 307
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   369 DLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREmHSWDYSG 448
Cdd:cd01968 308 DLGMEVVATGTQKGTKEDYERIKELLGEGTVIVDDANPRELKKLLKEKKADLLVAGGKERYLALKLGIPFCD-INHERKH 386
                       410       420
                ....*....|....*....|....
gi 128239   449 PYHGFDGFAIFARDMDMTLNNPCW 472
Cdd:cd01968 387 PYAGYEGMLNFAKEVDLAVNSPVW 410
nifE TIGR01283
nitrogenase molybdenum-iron cofactor biosynthesis protein NifE; This protein is part of the ...
15-473 2.18e-128

nitrogenase molybdenum-iron cofactor biosynthesis protein NifE; This protein is part of the NifEN complex involved in biosynthesis of the molybdenum-iron cofactor used by the homologous NifDK complex of nitrogenase. In a few species, the protein is found as a NifEN fusion protein. [Biosynthesis of cofactors, prosthetic groups, and carriers, Other, Central intermediary metabolism, Nitrogen fixation]


Pssm-ID: 188126 [Multi-domain]  Cd Length: 453  Bit Score: 380.55  E-value: 2.18e-128
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      15 EVLEVYPEKArKDRNKHlavndpavTQSKKCIISNKKSQPGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRA 94
Cdd:TIGR01283   4 KIAELLDEPA-CEHNKE--------KEEKGCKSGCANSLPGGATQRGCVFDGAR-IVLLPITDAAHLVHGPIGCAGSSWD 73
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      95 GRRNYyigTTGVNAFvTMNFTSDFQEKDIVFGGDKKLAKLIDE-VETLFPlnKGISVQSECPIGLIGDDIESVSKVKGAE 173
Cdd:TIGR01283  74 IRGSR---SSGPELY-RLGFTTDLTEKDVIFGGEKKLFHAIREiVERYHP--PAVFVYSTCVPALIGDDLEAVCKAAAEK 147
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     174 LSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDEDTT-FASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQ 252
Cdd:TIGR01283 148 TGIPVIPVDSEGFYG-TKNLGNKLACDALLKHVIGTREPEPLpVGITVHDINLIGEFNVAGEFWHVLPLLEKLGIRVLAT 226
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     253 WSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKF-DESIQKKCEEVIAKY 331
Cdd:TIGR01283 227 ITGDSRYAEVQTAHRAKLNMVQCSKAMINLARKMEEKYGIPYFEGSFYGIEDTSKALRDIADLFgDPELLKRTEELIARE 306
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     332 KPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEE 411
Cdd:TIGR01283 307 EAKIRPALEPYRERLKGKKAAIYTGGVKSWSVVSALQDLGMEVVATGTQKSTEEDYARIRELMGEGTVMLDDANPRELLK 386
                         410       420       430       440       450       460
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 128239     412 FVKRIKPDLIGSGIKEKFIFQKMGIPFREmHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWK 473
Cdd:TIGR01283 387 LLLEYKADILIAGGRERYTALKLGIPFLD-INHEREHPYAGYDGMVEFAREVDLTVESPIWQ 447
Oxidored_nitro pfam00148
Nitrogenase component 1 type Oxidoreductase;
62-468 2.34e-116

Nitrogenase component 1 type Oxidoreductase;


Pssm-ID: 395096 [Multi-domain]  Cd Length: 398  Bit Score: 348.08  E-value: 2.34e-116
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      62 CAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYigttgvNAFVTMnFTSDFQEKDIVFGGDKKLAKLIDEVETL 141
Cdd:pfam00148   1 CAPAGAS-VALLGIKDAVPLVHGPQGCATYVRLLLTRHF------REPIPL-ATTSLTEKDVVFGGEENLKEAIKEVDKR 72
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     142 F-PlnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDEDTtfastP 220
Cdd:pfam00148  73 YkP--KAIFVISTCLTETIGDDIEAVAREAREELGIPVIPVSTPGFVG-SHSTGYDVALEAIVRQLVGKKGEKE-----P 144
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     221 YDVAIIGDYNIG-GDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEY-N 298
Cdd:pfam00148 145 GTVNILGGFNLGpGDLREIKRLLEKLGIEVNPVFTGGTTLEDLRAAGNAAANLVLCPFSGEYAAEMLEEKFGVPYIRLgA 224
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     299 FFGPTKTIESLRAIAAKFDESIqkkCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTG 378
Cdd:pfam00148 225 PIGLEATDRFLRALAKLFGKEV---APEVIARERGRLLDAMVDYHEYLAGKRVAIYGDPDLVLGLARFLLELGMEPVAVG 301
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     379 YEFAHNDDYDRTMKEMGDST-LLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKM-------GIPFREMHSWDYsGPY 450
Cdd:pfam00148 302 TGTGHPDDYERLKAELEEGDpEVIDGADLEELEELIKELKPDLLLGNSKGRYIARKLgiplvrvGFPIVDRHGLHR-RPY 380
                         410
                  ....*....|....*...
gi 128239     451 HGFDGFAIFARDMDMTLN 468
Cdd:pfam00148 381 VGYRGALNLADRIANALL 398
Nitrogenase_VFe_alpha cd01977
Nitrogenase_VFe_alpha -like: Nitrogenase VFe protein, alpha subunit like. This group contains ...
54-473 3.08e-115

Nitrogenase_VFe_alpha -like: Nitrogenase VFe protein, alpha subunit like. This group contains proteins similar to the alpha subunits of, the VFe protein of the vanadium-dependent (V-) nitrogenase and the FeFe protein of the iron only (Fe-) nitrogenase Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen (N2) to ammonia. In addition to V- and Fe- nitrogenases there is a molybdenum (Mo)-dependent nitrogenase which is the most widespread and best characterized of these systems. These systems consist of component 1 (VFe protein, FeFe protein or, MoFe protein respectively) and, component 2 (Fe protein). MoFe is an alpha2beta2 tetramer, V-and Fe- nitrogenases are alpha2beta2delta2 hexamers. The alpha and beta subunits of VFe and FeFe are similar to the alpha and beta subunits of MoFe. For MoFe each alphabeta pair contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein which has a practically identical structure in all three systems, it contains a single [4Fe-4S] cluster. Electrons are transferred from the [4Fe-4S] cluster of the Fe protein to the P-cluster of the MoFe and in turn to FeMoCo, the site of substrate reduction. The V-nitrogenase requires an iron-vanadium cofactor (FeVco), the iron only-nitrogenase an iron only cofactor (FeFeco). These cofactors are analogous to the FeMoco. The V-nitrogenase has P clusters identical to those of MoFe. In addition to N2, nitrogenase also catalyzes the reduction of a variety of other substrates such as acetylene The V-nitrogenase differs from the Mo-nitrogenase in that it produces free hydrazine, as a minor product during dinitrogen reduction and, ethane as a minor product during acetylene reduction.


Pssm-ID: 238936 [Multi-domain]  Cd Length: 415  Bit Score: 345.58  E-value: 3.08e-115
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    54 PGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRnyYIGTTGvNAFVTMNFTSDFQEKDIVFGGDKKLAK 133
Cdd:cd01977   1 PGSLSERGCAYCGAKLVIGGVIKDVIHVIHGPVGCTYDTWHTKR--YPSDND-NFQLKYIWSTDMKESHVVFGGEKKLKK 77
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   134 LIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAEL-SKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDE 212
Cdd:cd01977  78 NIIEAFKEFPDIKRMTVYTTCTTALIGDDIKAVAKEVMEELpDVDIFVCNAPGFAGPSQSKGHHVLNIAWINQKVGTVEP 157
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   213 DTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGI 292
Cdd:cd01977 158 EIT---SDYTINYIGDYNIQGDTEVLQKYFERMGIQVLSTFTGNGTYDDLRWMHRAKLNVVNCARSAGYIANELKKRYGI 234
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   293 PWMEYNFFGPTKTIESLRAIAAKFdeSIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYED-LG 371
Cdd:cd01977 235 PRLDVDGFGFEYCAESLRKIGAFF--GIEDRAEAVIAEEMAKWKPELDWYKERLKGKKVCIWTGGPKLWHWTKVIEDeLG 312
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   372 MEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWdYSGPYH 451
Cdd:cd01977 313 MQVVAMSSKFGHQEDFEKVIARGGEGTIYIDDPNELEFFEILEMLKPDIILTGPRVGELVKKLHVPYVNIHAY-HNGPYM 391
                       410       420
                ....*....|....*....|..
gi 128239   452 GFDGFAIFARDMDMTLNNPCWK 473
Cdd:cd01977 392 GFEGFVNLARDMYNAIYSPIWQ 413
alt_nitrog_alph TIGR01284
nitrogenase alpha chain; This model represents the alpha chains of various forms of the ...
27-472 1.00e-108

nitrogenase alpha chain; This model represents the alpha chains of various forms of the nitrogen-fixing enzyme nitrogenase: vanadium-iron, iron-iron, and molybdenum-iron. Most examples of NifD, the molybdenum-iron type nitrogenase alpha chain, are excluded from this model and described instead by equivalog model TIGR01282. It appears by phylogenetic and UPGMA trees that this model represents a distinct clade of NifD homologs, in which arose several molybdenum-independent forms. [Central intermediary metabolism, Nitrogen fixation]


Pssm-ID: 188127  Cd Length: 457  Bit Score: 330.65  E-value: 1.00e-108
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239      27 DRNKHLAVNDPAVTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRnyYIgTTGV 106
Cdd:TIGR01284  11 ERKKHIYVKKQGEPEGDFLPACNTTTIPGCMSERGCAFCGAKGVIGGAIKDAIHVIHGPVGCTYDTWHTKR--YP-TDNE 87
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     107 NAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAEL-SKTIVPVRCEG 185
Cdd:TIGR01284  88 KFNLKYITGTDLKESHVVFGGEKKLKRCILEAFREFPEIKRMYTYATCTTALIGDDIDAIAREVMEEIpDVDVFAINAPG 167
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     186 FRGVSQSLGHHIANDAVRDWVLGKRDEDTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELT 265
Cdd:TIGR01284 168 FAGPSQSKGHHVANITWINDKVGTAEPEIT---TEYDVNLIGEYNIQGDLWVLKKYFERMGIQVLSTFTGNGCYDELRWM 244
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     266 PKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFdeSIQKKCEEVIAKYKPEWEAVVAKYRPR 345
Cdd:TIGR01284 245 HRAKLNVVRCARSANYIANELEERYGIPRLDIDFFGFEYCAKNLRKIGEFF--GIEERAERVIEEEMAKWKPELDWYKER 322
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     346 LEGKRVMLYIGGLRPRHVIGAYED-LGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSG 424
Cdd:TIGR01284 323 LRGKKVWVWSGGPKLWHWPRPLEDeLGMEVVAVSTKFGHEDDYEKIIARVREGTVIIDDPNELELEEIIEKYKPDIILTG 402
                         410       420       430       440
                  ....*....|....*....|....*....|....*....|....*...
gi 128239     425 IKEKFIFQKMGIPFREMHSWdYSGPYHGFDGFAIFARDMDMTLNNPCW 472
Cdd:TIGR01284 403 IREGELAKKLGVPYINIHSY-HNGPYIGFEGFVNLARDMYNAIYNPVW 449
PRK14477 PRK14477
bifunctional nitrogenase molybdenum-cofactor biosynthesis protein NifE/NifN; Provisional
50-492 3.46e-103

bifunctional nitrogenase molybdenum-cofactor biosynthesis protein NifE/NifN; Provisional


Pssm-ID: 172952 [Multi-domain]  Cd Length: 917  Bit Score: 329.01  E-value: 3.46e-103
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239     50 KKSQPGLMTIRGCAYAGSKgVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTgvnaFVTMNFTSDFQEKDIVFGGDK 129
Cdd:PRK14477  24 KKSEPGEGAERSCAYDGAR-VVLMPITDVIHLVHGPIACAGNSWDNRGARSSGSQ----LYRRGFTTEMLENDVIFGGEK 98
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    130 KLAKLIDEVETLFPlNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGK 209
Cdd:PRK14477  99 KLYRAILELAERYQ-PKAVFVYATCVTALTGDDVEAVCKAAAEKVGIPVIPVNTPGFIG-DKNIGNRLAGEALLKHVIGT 176
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    210 RDEDTTfasTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEK 289
Cdd:PRK14477 177 AEPEVT---TPYDINLIGEYNIAGDLWGMLPLFDRLGIRVLSCISGDAKFEELRYAHRAKLNVIICSKSLTNLARKMEKR 253
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    290 YGIPWMEYNFFGPTKTIESLRAIAAKFDES--------IQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPR 361
Cdd:PRK14477 254 YGIPYLEESFYGMTDTAKALRDIARELDDAggglekrvLQDRVEKLIAEEEAKCRAALAPYRARLEGKRVVLFTGGVKTW 333
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    362 HVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREM 441
Cdd:PRK14477 334 SMVNALRELGVEVLAAGTQNSTLEDFARMKALMHKDAHIIEDTSTAGLLRVMREKMPDLIVAGGKTKFLALKTRTPFLDI 413
                        410       420       430       440       450
                 ....*....|....*....|....*....|....*....|....*....|...
gi 128239    442 HSwDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQ--APWEASEGAEKVAASA 492
Cdd:PRK14477 414 NH-GRSHPYAGYEGMVTFARQLDLTVNNPIWPALRapAPWEKGAGELRADLAL 465
Nitrogenase_VnfE_like cd01972
Nitrogenase_VnfE_like: VnfE subunit of the VnfEN complex_like. This group in addition to VnfE ...
60-421 7.58e-34

Nitrogenase_VnfE_like: VnfE subunit of the VnfEN complex_like. This group in addition to VnfE contains a subset of the alpha subunit of the nitrogenase MoFe protein and NifE-like proteins. The nitrogenase enzyme system catalyzes the ATP-dependent reduction of dinitrogen to ammonia. NifEN participates in the synthesis of the iron-molybdenum cofactor (FeMoco) of MoFe protein of the molybdenum(Mo)-nitrogenase. NifB-co (an iron and sulfur containing precursor of the FeMoco) from NifB is transferred to NifEN where it is further processed to FeMoco. VnfEN may similarly be a scaffolding protein for the iron-vanadium cofactor (FeVco) of the vanadium-dependent (V)-nitrogenase. NifE and NifN are essential for the Mo-nitrogenase, VnfE and VnfN are not essential for the V-nitrogenase. NifE and NifN can substitute when the vnfEN genes are inactivated.


Pssm-ID: 238932 [Multi-domain]  Cd Length: 426  Bit Score: 132.16  E-value: 7.58e-34
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    60 RGCAYAGSKGVVWGpIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNAFVTMnFTSDFQEKDIVFGGDKKLAKLIDEVE 139
Cdd:cd01972   8 SMCKFWTAFCILSG-IRDAVVVQHGPIGCAAGQSFFNRLYRCGEMRRGLNEPV-LSTNLTEKDVVFGGEKKLEDTIKEAY 85
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   140 TLF-PlnKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGHhianDAVRDWVLGKRDEDTTFAS 218
Cdd:cd01972  86 SRYkP--KAIFVATSCATGIIGDDVESVVEELEDEIGIPVVALHCEGFKGKHWRSGF----DAAFHGILRHLVPPQDPTK 159
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   219 TPYDVAIIG-----DYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIP 293
Cdd:cd01972 160 QEDSVNIIGlwggpERTEQEDVDEFKRLLNELGLRVNAIIAGGCSVEELERASEAAANVTLCLDLGYYLGAALEQRFGVP 239
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   294 WME----YNFFGptkTIESLRAIAakfdeSIQKKCEEVIAKYKPEWEAV---VAKYRPRLEGKRVMLYIGGLrPRHVIGA 366
Cdd:cd01972 240 EIKapqpYGIEA---TDKWLREIA-----KVLGMEAEAEAVIEREHERVapeIEELRKALKGKKAIVETGAA-YGHLLIA 310
                       330       340       350       360       370       380
                ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 128239   367 Y--EDLGMEVVGTgYEFAHNDDYDRTMKE---MGDSTLLYDDVTGY--------EFEEFVKRIKPDLI 421
Cdd:cd01972 311 VlrELGFGEVPVV-LVFHHDPTYDRGDSEkdlLEHGVDPEIDITKYtvsngqyyQFYNLLKRVKPDFI 377
Nitrogenase_VnfN_like cd01971
Nitrogenase_vnfN_like: VnfN subunit of the VnfEN complex-like. This group in addition to VnfN ...
61-330 4.25e-26

Nitrogenase_vnfN_like: VnfN subunit of the VnfEN complex-like. This group in addition to VnfN contains a subset of the beta subunit of the nitrogenase MoFe protein and NifN-like proteins. The nitrogenase enzyme system catalyzes the ATP-dependent reduction of dinitrogen to ammonia. NifEN participates in the synthesis of the iron-molybdenum cofactor (FeMoco) of MoFe protein of the molybdenum(Mo)-nitrogenase. NifB-co (an iron and sulfur containing precursor of the FeMoco) from NifB is transferred to NifEN where it is further processed to FeMoco. VnfEN may similarly be a scaffolding protien for the iron-vanadium cofactor (FeVco) of the vanadium-dependent (V)-nitrogenase. NifE and NifN are essential for the Mo-nitrogenase, VnfE and VnfN are not essential for the V-nitrogenase. NifE and NifN can substitute when the vnfEN genes are inactivated.


Pssm-ID: 238931 [Multi-domain]  Cd Length: 427  Bit Score: 110.20  E-value: 4.25e-26
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    61 GCAYAGSKGVVWGpIKDMIHISHGPVGCG--QYSRAGRRNYYIGTtGVNAFVTMNFTsdfqEKDIVFGGDKKLAKLIDEV 138
Cdd:cd01971   8 GCALGGALYTVSA-IPRAVPIIHSGPGCAskQSGAVAFGNGYQGG-GYGVAPCTNAT----ETEIVFGGEDRLRELIKST 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   139 ETLFPlNKGISVQSECPIGLIGDDIESVSKvKGAELSKTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDED----- 213
Cdd:cd01971  82 LSIID-ADLFVVLTGCIAEIIGDDVGAVVS-EFQEGGAPIVYLETGGFKG-NNYAGHEIVLKAIIDQYVGQSEEKepglv 158
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   214 TTFASTPY-DVAIIGDYniggdAWSSRiLLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGI 292
Cdd:cd01971 159 NLWGPVPYqDPFWRGDL-----EEIKR-VLEGIGLKVNILFGPESNGEELRSIPKAQFNLVLSPWVGLEFAQHLEEKYGQ 232
                       250       260       270       280
                ....*....|....*....|....*....|....*....|
gi 128239   293 PWMEYNFF--GPTKTIESLRAIAAKFDESIQkKCEEVIAK 330
Cdd:cd01971 233 PYIHSPTLpiGAKATAEFLRQVAKFAGIEKA-KVEAFIKA 271
Nitrogenase_MoFe_beta_like cd01965
Nitrogenase_MoFe_beta_like: Nitrogenase MoFe protein, beta subunit_like. The nitrogenase ...
75-461 6.69e-18

Nitrogenase_MoFe_beta_like: Nitrogenase MoFe protein, beta subunit_like. The nitrogenase enzyme catalyzes the ATP-dependent reduction of dinitrogen (N2) to ammonia. This group contains the beta subunits of component 1 of the three known genetically distinct types of nitrogenase systems: a molybdenum-dependent nitrogenase (Mo-nitrogenase), a vanadium-dependent nitrogenase (V-nitrogenase), and an iron-only nitrogenase (Fe-nitrogenase). These nitrogenase systems consist of component 1 (MoFe protein, VFe protein or, FeFe protein respectively) and, component 2 (Fe protein). The most widespread and best characterized of these systems is the Mo-nitrogenase. MoFe is an alpha2beta2 tetramer, the alternative nitrogenases are alpha2beta2delta2 hexamers having alpha and beta subunits similar to the alpha and beta subunits of MoFe. For MoFe, each alphabeta pair contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein contains, a single [4Fe-4S] cluster from which electrons are transferred to the P-cluster of the MoFe and in turn, to FeMoCo, the site of substrate reduction. The V-nitrogenase requires an iron-vanadium cofactor (FeVco), the iron only-nitrogenase an iron only cofactor (FeFeco). These cofactors are analogous to the FeMoco. The V-nitrogenase has P clusters identical to those of MoFe. In addition to N2, nitrogenase also catalyzes the reduction of a variety of other substrates such as acetylene The V-nitrogenase differs from the Mo-nitrogenase in that it produces free hydrazine, as a minor product during N2-reduction and, ethane as a minor product during acetylene reduction


Pssm-ID: 238927 [Multi-domain]  Cd Length: 428  Bit Score: 85.69  E-value: 6.69e-18
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    75 IKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNafvtmnfTSDFQEKDIVFGGDKKLAKLIDEVETLFPlNKGISVQSEC 154
Cdd:cd01965  20 IEGCMPLVHGSQGCSSFARVLFTRHFKEPIPIA-------STSMTEDAAVFGGEDNLIEALKNLLSRYK-PDVIGVLTTC 91
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   155 PIGLIGDDIESV---SKVKGAELSKT-IVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDED--------TTFASTPYD 222
Cdd:cd01965  92 LTETIGDDVAGFikeFRAEGPEPADFpVVYASTPSFKG-SHETGYDNAVKAIIEQLAKPSEVKkngkvnllPGFPLTPGD 170
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   223 VAIIGDyniggdawssriLLEEMGLRCVA--------------QWS----GDGSISEIELTPKVKLNLVHCYRSMNYISR 284
Cdd:cd01965 171 VREIKR------------ILEAFGLEPIIlpdlsdsldghltdGYSpltkGGTTLEEIRDAGNAKATIALGEYSGRKAAK 238
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   285 HMEEKYGIPWMEYNF-FGPTKTIESLRAIAAKFDesiqkkcEEVIAKYKPEweavvakyRPRLE-----------GKRVM 352
Cdd:cd01965 239 ALEEKFGVPYILFPTpIGLKATDEFLRALSKLSG-------KPIPEELERE--------RGRLLdamldshfylgGKRVA 303
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   353 LYiggLRPRHVIGAYE---DLGMEVVgtgYEFAHNDD---YDRTMKEMGDSTLLYDDVTG---YEFEEFVKRIKPDL-IG 422
Cdd:cd01965 304 IA---GDPDLLLGLSRfllEMGAEPV---AAVTGTDNppfEKRMELLASLEGIPAEVVFVgdlWDLESLAKEEPVDLlIG 377
                       410       420       430
                ....*....|....*....|....*....|....*....
gi 128239   423 SGiKEKFIFQKMGIPFREMhswdysgpyhgfdGFAIFAR 461
Cdd:cd01965 378 NS-HGRYLARDLGIPLVRV-------------GFPIFDR 402
Pchlide_reductase_B cd01981
Pchlide_reductase_B: B protein of the NB protein complex of Protochlorophyllide (Pchlide) ...
64-471 1.24e-08

Pchlide_reductase_B: B protein of the NB protein complex of Protochlorophyllide (Pchlide)_reductase. Pchlide reductase catalyzes the reductive formation of chlorophyllide (chlide) from protochlorophyllide (pchlide) during biosynthesis of chlorophylls and bacteriochlorophylls. This group contains both the light-independent Pchlide reductase (DPOR) and light-dependent Pchlide reductase (LPOR). Angiosperms contain only LPOR, cyanobacteria, algae and gymnosperms contain both DPOR and LPOR, primitive anoxygenic photosynthetic bacteria contain only DPOR. NB is structurally similar to the FeMo protein of nitrogenase, forming an N2B2 heterotetramer. N and B are homologous to the FeMo alpha and beta subunits respectively. Also in common with nitrogenase in vitro DPOR activity requires ATP hydrolysis and dithoionite or ferredoxin as electron donor. The NB protein complex may serve as a catalytic site for Pchlide reduction similar to MoFe for nitrogen reduction.


Pssm-ID: 238939 [Multi-domain]  Cd Length: 430  Bit Score: 57.01  E-value: 1.24e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    64 YAGSK--GV--VWGPIKDMIHISHGPvgcgqysragrrnyyIGTTGVNAFVTM-----NFT----SDFQEKDIVFGGDKK 130
Cdd:cd01981   8 YEGPAhiGTlrVASSFKNVHAVMHAP---------------LGDDYFNVMRSMlererDFTpvtaSTVDRHVLARGSQEK 72
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   131 LaklideVETLFPLNK-----GISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFR--------GVSQSLGHHI 197
Cdd:cd01981  73 V------VENITRKDKeekpdLIVLTPTCTSSILQEDLQNFVRAAGLSSKSPVLPLDVNHYRvnelqaadETFEQLVRFY 146
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   198 ANDAVRDWVLGKRDEDTTfastpydVAIIGDYNIG----GDAWSSRILLEEMGLR--CVAQWsgDGSISEIELTPKVKLN 271
Cdd:cd01981 147 AEKARPQGTPREKTEKPS-------VNLIGPSSLGfhnrHDCRELKRLLHTLGIEvnVVIPE--GASVDDLNELPKAWFN 217
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   272 LVHcYRSMnYIS--RHMEEKYGIPWMEYNFFGPTKTIESLRAIaaKFDESIQKKCEEV-IAKYK---PEWEAVVAkYRPR 345
Cdd:cd01981 218 IVP-YREY-GLSaaLYLEEEFGMPSVKITPIGVVATARFLREI--QELLGIQIIPELVnVEPYIdsqTRWVSQSA-RSSR 292
                       330       340       350       360       370       380       390       400
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   346 ------LEGKRVMLYIGGLrprHVIGA----YEDLGMEVVGTGYEFAHNDDYDRT-MKEMGDSTLLYDDVTgyEFEEFVK 414
Cdd:cd01981 293 sidsqnLTGKRAFVFGDAT---HVAAAtrilAREMGFRVVGAGTYCKEDAKWFREqATGYCDEALITDDHT--EVGDMIA 367
                       410       420       430       440       450       460
                ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 128239   415 RIKPDLIGSGIKEKFIFQKMGIP----FREMHSWDYSG---PYHGFDGfaifARDMDMTLNNPC 471
Cdd:cd01981 368 RTEPELIFGTQMERHIGKRLDIPcaviSAPVHIQNFPLgyrPFLGYEG----TNVIADTVYNSL 427
PRK02910 PRK02910
ferredoxin:protochlorophyllide reductase (ATP-dependent) subunit B;
241-455 5.08e-06

ferredoxin:protochlorophyllide reductase (ATP-dependent) subunit B;


Pssm-ID: 235085 [Multi-domain]  Cd Length: 519  Bit Score: 49.11  E-value: 5.08e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    241 LLEEMGL--RCVAQWSGdgSISEIELTPKVKLNLVhCYRSMNYIS-RHMEEKYGIPWMEYNFFGPTKTIESLRAIA---- 313
Cdd:PRK02910 183 LLATLGIdvNVVAPLGA--SPADLKRLPAAWFNVV-LYREIGESAaRYLEREFGQPYVKTVPIGVGATARFIREVAelln 259
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    314 ---AKFDESIQkkcEEVIAKYKPEWEA--VVAKYrprLEGKRVMLYIGGlrpRHVIGA----YEDLGMEVVGTG-YEFAH 383
Cdd:PRK02910 260 ldgADLEAFIL---DGLSAPSRLPWFSrsVDSTY---LTGKRVFVFGDA---THAVAAarilSDELGFEVVGAGtYLRED 330
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    384 NDDYDRTMKEMGDSTLLYDDVTgyEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPF----REMHSWD----YSgPYHGFDG 455
Cdd:PRK02910 331 ARWVRAAAKEYGDEALITDDYL--EVEDAIAEAAPELVLGTQMERHSAKRLGIPCavisAPTHVQDfparYS-PQMGFEG 407
Nitrogenase_NifN_2 cd03466
Nitrogenase_nifN_2: A subgroup of the NifN subunit of the NifEN complex: NifN forms an ...
75-437 4.86e-05

Nitrogenase_nifN_2: A subgroup of the NifN subunit of the NifEN complex: NifN forms an alpha2beta2 tetramer with NifE. NifN and nifE are structurally homologous to nitrogenase MoFe protein beta and alpha subunits respectively. NifEN participates in the synthesis of the iron-molybdenum cofactor (FeMoco) of the MoFe protein. NifB-co (an iron and sulfur containing precursor of the FeMoco) from NifB is transferred to the NifEN complex where it is further processed to FeMoco. The nifEN bound precursor of FeMoco has been identified as a molybdenum-free, iron- and sulfur- containing analog of FeMoco. It has been suggested that this nifEN bound precursor also acts as a cofactor precursor in nitrogenase systems which require a cofactor other than FeMoco: i.e. iron-vanadium cofactor (FeVco) or iron only cofactor (FeFeco). This group also contains the Clostidium fused NifN-NifB protein.


Pssm-ID: 239549 [Multi-domain]  Cd Length: 429  Bit Score: 45.84  E-value: 4.86e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    75 IKDMIHISHGPVGCGQYSRagrrnYYIGTTGVNAfvtMNF-TSDFQEKDIVFGGDKKLAKLIDEVETLF-PlnKGISVQS 152
Cdd:cd03466  23 IEGCMPLLHGSQGCSTYIR-----RHMARHYNEP---VDIaSSSLNEETTVYGGEKNLKKGLKNVIEQYnP--EVIGIAT 92
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   153 ECPIGLIGDDIESVSKVKGAELS---KTIVPVRCEGFRGvSQSLGHHIANDAVRDWVLGKRDEDTTfastpydVAIIGDY 229
Cdd:cd03466  93 TCLSETIGEDVPRIIREFREEVDdsePKIIPASTPGYGG-THVEGYDTAVRSIVKNIAVDPDKIEK-------INVIAGM 164
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   230 NIGGDAWSSRILLEEMGLRCV-----------AQW-------SGDGSISEIELTPKVKLNLVHCYRSMNYIS--RHMEEK 289
Cdd:cd03466 165 MSPADIREIKEILREFGIEYIllpdtsetldgPFWgeyhrlpSGGTPISEIKGMGGAKATIELGMFVDHGLSagSYLEEE 244
                       250       260       270       280       290       300       310       320
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239   290 YGIPWMEYNF-FGPTKTIESLRAIAAKFDESIQKKCEEVIAKYkpeWEAVV--AKYrprLEGKRVMLYIgglRPRHVIGA 366
Cdd:cd03466 245 FGIPNYRLPLpIGLRATDEFMSLLSKLTGKPIPEKYTRERGRL---LDAMIdaHKY---NFGRKAAIYG---EPDFVVAI 315
                       330       340       350       360       370       380       390
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 128239   367 YE---DLGM--EVVGTGYEFAH-NDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPD-LIGSGiKEKFIFQKMGIP 437
Cdd:cd03466 316 TRfvlENGMvpVLIATGSESKKlKEKLEEDLKEYVEKCVILDGADFFDIESYAKELKIDvLIGNS-YGRRIAEKLGIP 392
Nitrogenase_VFe_beta_like cd01973
Nitrogenase_VFe_beta -like: Nitrogenase VFe protein, beta subunit like. This group contains ...
62-206 6.50e-05

Nitrogenase_VFe_beta -like: Nitrogenase VFe protein, beta subunit like. This group contains proteins similar to the beta subunits of the VFe protein of the vanadium-dependent (V-) nitrogenase. Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen (N2) to ammonia. In addition to V-nitrogenase there is a molybdenum (Mo)-dependent nitrogenase and an iron only (Fe-) nitrogenase. The Mo-nitrogenase is the most widespread and best characterized of these systems. These systems consist of component 1 (VFe protein, FeFe protein or, MoFe protein respectively) and, component 2 (Fe protein). MoFe is an alpha2beta2 tetramer, V-and Fe- nitrogenases are alpha2beta2delta2 hexamers. The alpha and beta subunits of VFe and FeFe are similar to the alpha and beta subunits of MoFe. For MoFe each alphabeta pair contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein which has a practically identical structure in all three systems, it contains a single [4Fe-4S] cluster. Electrons are transferred from the [4Fe-4S] cluster of the Fe protein to the P-cluster of the MoFe and in turn to FeMoCo, the site of substrate reduction. The V-nitrogenase requires an iron-vanadium cofactor (FeVco), the iron only-nitrogenase an iron only cofactor (FeFeco). These cofactors are analogous to the FeMoco. The V-nitrogenase has P clusters identical to those of MoFe. In addition to N2, nitrogenase also catalyzes the reduction of a variety of other substrates such as acetylene The V-nitrogenase differs from the Mo-nitrogenase in that it produces free hydrazine, as a minor product during dinitrogen reduction and, ethane as a minor product during acetylene reduction.


Pssm-ID: 238933 [Multi-domain]  Cd Length: 454  Bit Score: 45.17  E-value: 6.50e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 128239    62 CAYAGSKGVVWGpIKDMIHISHGPVGCGQYSRAGRRNYYigttgvnafvTMNF---TSDFQEKDIVFGGDKKLAKLIDEV 138
Cdd:cd01973  13 CQPAGAQYAGIG-IKDCIPLVHGGQGCTMFVRLLFAQHF----------KENFdiaSSSLHEDSAVFGGAKRVEEGVLVL 81
                        90       100       110       120       130       140       150
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 128239   139 ETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKT-------IVPVRCEGFRGvSQSLGHhiaNDAVRDWV 206
Cdd:cd01973  82 ARRYPDLRVIPIITTCSTEIIGDDIEGVIRKLNEALKEEfpdrevhLIPVHTPSFKG-SMVTGY---DEAVRSVV 152
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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