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Conserved domains on  [gi|446199351|ref|WP_000277206|]
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carbohydrate porin [Escherichia coli]

Protein Classification

carbohydrate porin( domain architecture ID 11189364)

carbohydrate porin belonging to the LamB family whose members are thought to bind various sugars; similar to maltoporin which is involved in the transport of maltose and maltodextrins

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
LamB pfam02264
LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the ...
98-505 6.03e-115

LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the diffusion of maltodextrins across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an antiparallel beta-barrel.


:

Pssm-ID: 426687  Cd Length: 385  Bit Score: 344.28  E-value: 6.03e-115
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   98 HGYARSGLLMNDAASSSksgpYLTPAGETGGAvGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWTGgs 177
Cdd:pfam02264   1 HGYARSGVGFSGGGGSQ----VCFQAGGAGGK-YRLGNECDTYGELQLGKELTKEDGAKFKFDVMLAYSSSGSNDWEG-- 73
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  178 SNLNIRQAFAELGALPSFTGafkDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYDVKWNDTfRSNFSLYGRNFGDL 257
Cdd:pfam02264  74 TDFNLRQAYVEASNLLPFLP---EATLWAGKRFYRRN-DIHINDFYYWDLSGTGAGVEDIDLGFG-KLSVALYRGDSDDL 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  258 D-----DIDNNVQNYILTMNHY--AGPFQLMVSGLRAKDNDDRKDANgdliqtDAANTGVhALVGLHNDTFYGlreGTAK 330
Cdd:pfam02264 149 SsvyngDVNNNRLDLRLTGIPLnpGGKLELGLDYGFANGNDDQTLGD------YAADDGW-MLTLQHTQDFLG---GFNK 218
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  331 TALLYGHGLGAEVKGIGSDGALL---SEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYVKGDSYEWVTFNTRLIKEV 407
Cdd:pfam02264 219 LALQYGTGLGAGNGAGGSGGGLTndpPDAKSFRVVEQGVWQLSDRFSLMYALVYQKSDDGTDNGDDYTWLSAGVRPMYAW 298
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  408 TQNFALAFEGSYQYMDlkpkgyQNHNAVNGSFYKLTFAPTLKAndINNFFSRPELRLFATWMDWSSKLDDF-ASNDAFGS 486
Cdd:pfam02264 299 TDNFKLLLELGYDYVD------DKGNDALGGLYKFTLAPTLKA--GSGFWSRPELRLFATYANWNDAADGAlAGGGGFGG 370
                         410
                  ....*....|....*....
gi 446199351  487 SgfntGGEWNFGVQMETWF 505
Cdd:pfam02264 371 D----TSGWNFGVQAEAWW 385
Sugarporin_N pfam11471
Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, ...
28-58 4.93e-10

Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, N-terminal extension of the outer membrane maltoporins, pfam02264, LamB.


:

Pssm-ID: 431901  Cd Length: 31  Bit Score: 54.57  E-value: 4.93e-10
                          10        20        30
                  ....*....|....*....|....*....|.
gi 446199351   28 SIESRLAALEQRLKNAESRAQAAEARAKTAE 58
Cdd:pfam11471   1 TVEQRLAALEKRLQEAEARAQKAEARAKEAE 31
PilN super family cl43801
Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];
8-103 1.50e-03

Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];


The actual alignment was detected with superfamily member COG3166:

Pssm-ID: 442399 [Multi-domain]  Cd Length: 185  Bit Score: 39.56  E-value: 1.50e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   8 AMLIALLTGATTVHAQTDISSIESRLAALEQRLKNAESR-AQAAEARAKTAELQ-----VQKLAETQQQNQLTTQEVAQR 81
Cdd:COG3166   29 LLLALAVLFLVYLYLQGQIAQQQARNAALQQEIAKLDKQiAEIKELKKQKAELLarlqvIEQLQQSRPPWVHLLDELARL 108
                         90       100
                 ....*....|....*....|....*
gi 446199351  82 T---VQLEQKSAENSGFEFHGYARS 103
Cdd:COG3166  109 LpegVWLTSLSQQGGTLTLTGVAQS 133
 
Name Accession Description Interval E-value
LamB pfam02264
LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the ...
98-505 6.03e-115

LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the diffusion of maltodextrins across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an antiparallel beta-barrel.


Pssm-ID: 426687  Cd Length: 385  Bit Score: 344.28  E-value: 6.03e-115
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   98 HGYARSGLLMNDAASSSksgpYLTPAGETGGAvGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWTGgs 177
Cdd:pfam02264   1 HGYARSGVGFSGGGGSQ----VCFQAGGAGGK-YRLGNECDTYGELQLGKELTKEDGAKFKFDVMLAYSSSGSNDWEG-- 73
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  178 SNLNIRQAFAELGALPSFTGafkDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYDVKWNDTfRSNFSLYGRNFGDL 257
Cdd:pfam02264  74 TDFNLRQAYVEASNLLPFLP---EATLWAGKRFYRRN-DIHINDFYYWDLSGTGAGVEDIDLGFG-KLSVALYRGDSDDL 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  258 D-----DIDNNVQNYILTMNHY--AGPFQLMVSGLRAKDNDDRKDANgdliqtDAANTGVhALVGLHNDTFYGlreGTAK 330
Cdd:pfam02264 149 SsvyngDVNNNRLDLRLTGIPLnpGGKLELGLDYGFANGNDDQTLGD------YAADDGW-MLTLQHTQDFLG---GFNK 218
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  331 TALLYGHGLGAEVKGIGSDGALL---SEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYVKGDSYEWVTFNTRLIKEV 407
Cdd:pfam02264 219 LALQYGTGLGAGNGAGGSGGGLTndpPDAKSFRVVEQGVWQLSDRFSLMYALVYQKSDDGTDNGDDYTWLSAGVRPMYAW 298
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  408 TQNFALAFEGSYQYMDlkpkgyQNHNAVNGSFYKLTFAPTLKAndINNFFSRPELRLFATWMDWSSKLDDF-ASNDAFGS 486
Cdd:pfam02264 299 TDNFKLLLELGYDYVD------DKGNDALGGLYKFTLAPTLKA--GSGFWSRPELRLFATYANWNDAADGAlAGGGGFGG 370
                         410
                  ....*....|....*....
gi 446199351  487 SgfntGGEWNFGVQMETWF 505
Cdd:pfam02264 371 D----TSGWNFGVQAEAWW 385
Maltoporin-like cd01346
The Maltoporin-like channels (LamB porin) form a trimeric structure which facilitate the ...
95-505 1.12e-111

The Maltoporin-like channels (LamB porin) form a trimeric structure which facilitate the diffusion of maltodextrins and other sugars across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an 18-strand antiparallel beta-barrel (18,22). Loop 3 folds into the core to constrict pore size. Long irregular loops are found on the extracelllular side, while short turns are in the periplasm.Tightly-bound water molecules are found in the eyelet of the passage, and only substrates that can displace and replace the broken hydrogen bonds are likely to enter the pore. In the MPR structure, loops 4,6, and 9 have the greatest mobility and are highly variable; these are postulated to attract maltodextrins.


Pssm-ID: 238656  Cd Length: 392  Bit Score: 336.27  E-value: 1.12e-111
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  95 FEFHGYARSGLLMNDAASSSKSGpyltpAGETGGAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWT 174
Cdd:cd01346    1 FEFHGYARSGVGYSDGGGAQTCF-----AGGGGGSVGRLGNECDTYFELGLKKEVYNDNGVTADFVVMVAQGNGQSNDWT 75
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 175 GGSSN--LNIRQAFAELGALPSFtgaFKDSTVWAGKRFDRdNFDIHWLDSDVVFLAGTGGGIYDVKWNDtFRSNFSLYGR 252
Cdd:cd01346   76 FAADDgdLNVRQAYVELKGLLPF---LPGATFWAGKRFYR-RHDIHILDFYYWNTSGTGAGIENVQLGD-GKLSFALVRS 150
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 253 NFGDLDDI-DNNVQNYILTMNHYA------GPFQLMVSGLRAKDNDDrkdangdliQTDAANTGVHALVGLHNDTFYGlr 325
Cdd:cd01346  151 DNQDDDTTyDSDTNLNAIDLRYAGiplnpgGSLQLGGKYGFANDSDS---------GYYDAKDGWMLTALHHQKDFLG-- 219
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 326 eGTAKTALLYGHGLGAEVKGIGSD-GALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYVKGDSYEWVTFNTRLI 404
Cdd:cd01346  220 -GFNKTALQYGTGAGSGQGGSGGDyGGLDDGASSWRLAEYGEWQLGDRFGGGVALVYQRGNDPYGYGDDYQWASVGVRPA 298
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 405 KEVTQNFALAFEGSYQYMDLKPKGYQnhnAVNGSFYKLTFAPTLKANDInnFFSRPELRLFATWMDWSSKLDDFASndAF 484
Cdd:cd01346  299 YKWSDNFKTAFEVGYDTVKADDGGGV---TDDGSLYKLTVAPTFSAGTD--FWSRPELRFYATYSNWNDAALRAFT--AF 371
                        410       420
                 ....*....|....*....|.
gi 446199351 485 GSSGFNTGGEWNFGVQMETWF 505
Cdd:cd01346  372 GSAFGNSKDGWNFGVQVEAWW 392
LamB COG4580
Maltoporin (phage lambda and maltose receptor) [Carbohydrate transport and metabolism];
89-505 5.43e-51

Maltoporin (phage lambda and maltose receptor) [Carbohydrate transport and metabolism];


Pssm-ID: 443637  Cd Length: 408  Bit Score: 178.97  E-value: 5.43e-51
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  89 SAENSGFEFHGYARSGLLMNDAASSSKSgpYLTPAGetgGAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLA---D 165
Cdd:COG4580   19 AAQAQAVDFHGYLRSGIGASSDGGEQQC--FQLPGA---GSKYRLGNECDTYAELGLGQELYKEDGKTFYVDSMLAysnD 93
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 166 GQRDYNDWTGGSSNLNIRQAFAELGALPSFtgaFKDSTVWAGKRFDRDNfDIHWLD---SDVvflAGTGGGIYDVKWNDT 242
Cdd:COG4580   94 QSNDWESTNGDDGDFALRQAYVQAKGLIPA---LPGATFWAGKRYYQRH-DVHINDfyyWNI---SGPGAGIENIDLGFG 166
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 243 frsNFSL---YGRNFGDLDDIDNNVQNYILTMNHY------AGPFQLMVSGLRAKDNDDRKDANGdliqtdaantGVhAL 313
Cdd:COG4580  167 ---KLSYawtRNDENDGSNSGDQDVNVNRHDVRLAgikvnpGGKLELGVDYGRANGTDGQKDAKN----------GW-ML 232
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 314 VGLHndTFYGLREGTAKTALLYGHGLGAEV-KGIGSDGALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRyVKGD 392
Cdd:COG4580  233 TAEH--TQGNFLGGFNKLALQYGTGAGALQgLGGTGDTSADNDAKSWRVIDHGVWQLTDRFSGMYVAVYQKDDDR-DDGD 309
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 393 SYEWVTFNTRLIKEVTQNFALAFEGSYQYmdLKPKGyqnhnAVNGSFYKLTFAPTLKANDinNFFSRPELRLFATWMDWS 472
Cdd:COG4580  310 GQTWYSVGVRPVYAWTENFKLLLEVGYDR--VKPQD-----GDTRRLTKFTLAPTWSAGP--GFWSRPELRLFATYAKWN 380
                        410       420       430
                 ....*....|....*....|....*....|...
gi 446199351 473 SKLDDfASNDAFGSSgfntGGEWNFGVQMETWF 505
Cdd:COG4580  381 EAAQG-AATGTFGGD----TSGVTFGVQVEAWW 408
lamB PRK09360
maltoporin LamB;
96-504 1.91e-30

maltoporin LamB;


Pssm-ID: 236481  Cd Length: 415  Bit Score: 122.78  E-value: 1.91e-30
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  96 EFHGYARSGLlmndaaSSSKSGPYLTPAGETG-GAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWT 174
Cdd:PRK09360  27 DFHGYARSGI------GWTGSGGEQQCFQTTGaQSKYRLGNECETYAELKLGQELWKEGDKSFYFDSMVAYSVNQQNDWE 100
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 175 GGSSNL---NIrQAFAELGALPsftgafkDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYDVK---------WNDT 242
Cdd:PRK09360 101 STDPALrefNV-QAKNLIEWLP-------GATLWAGKRFYQRH-DVHMIDFYYWDISGPGAGIENIDlgfgklslaWTRN 171
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 243 FRSNFSlYGRNFGDLDDIDNNVQNYILTMnHYA-------GPFQLMVSGLRAKDNDDRKDANGdliqtdAANTGVhALVG 315
Cdd:PRK09360 172 TENGGS-YSFASNNIYDYTNDTANDVFDV-RLAgietnpgGSLELGVDYGRANLTDGYKLADG------ASKDGV-MFTA 242
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 316 LHNDTFYGlreGTAKTALLYG-HGLGAEVKGIGSDGALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYvkGDSY 394
Cdd:PRK09360 243 EHTQSLLG---GFNKFVVQYAtDSMTSQGKGHSQGSSINNNGHMLRVIDHGAISLGDKWEMMYVLMYQDIDWDN--NNGT 317
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 395 EWVTFNTRLIKEVTQNFALAFEGSYQYMDlkpkgyQNHNAVNGSFYKLTFAPTLKANDinNFFSRPELRLFATWMDWssk 474
Cdd:PRK09360 318 TWYSVGVRPMYKWTPIMSTLLEAGYDNVK------SQRTGDKNNQYKITLAQQWQAGD--SIWSRPAIRVFATYAKW--- 386
                        410       420       430
                 ....*....|....*....|....*....|
gi 446199351 475 ldDFASNDAFGSSGFNTGGEWNFGVQMETW 504
Cdd:PRK09360 387 --DEKTDENGNSFSRGDDDEWTFGAQMEAW 414
Sugarporin_N pfam11471
Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, ...
28-58 4.93e-10

Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, N-terminal extension of the outer membrane maltoporins, pfam02264, LamB.


Pssm-ID: 431901  Cd Length: 31  Bit Score: 54.57  E-value: 4.93e-10
                          10        20        30
                  ....*....|....*....|....*....|.
gi 446199351   28 SIESRLAALEQRLKNAESRAQAAEARAKTAE 58
Cdd:pfam11471   1 TVEQRLAALEKRLQEAEARAQKAEARAKEAE 31
PilN COG3166
Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];
8-103 1.50e-03

Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];


Pssm-ID: 442399 [Multi-domain]  Cd Length: 185  Bit Score: 39.56  E-value: 1.50e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   8 AMLIALLTGATTVHAQTDISSIESRLAALEQRLKNAESR-AQAAEARAKTAELQ-----VQKLAETQQQNQLTTQEVAQR 81
Cdd:COG3166   29 LLLALAVLFLVYLYLQGQIAQQQARNAALQQEIAKLDKQiAEIKELKKQKAELLarlqvIEQLQQSRPPWVHLLDELARL 108
                         90       100
                 ....*....|....*....|....*
gi 446199351  82 T---VQLEQKSAENSGFEFHGYARS 103
Cdd:COG3166  109 LpegVWLTSLSQQGGTLTLTGVAQS 133
 
Name Accession Description Interval E-value
LamB pfam02264
LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the ...
98-505 6.03e-115

LamB porin; Maltoporin (LamB protein) forms a trimeric structure which facilitates the diffusion of maltodextrins across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an antiparallel beta-barrel.


Pssm-ID: 426687  Cd Length: 385  Bit Score: 344.28  E-value: 6.03e-115
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   98 HGYARSGLLMNDAASSSksgpYLTPAGETGGAvGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWTGgs 177
Cdd:pfam02264   1 HGYARSGVGFSGGGGSQ----VCFQAGGAGGK-YRLGNECDTYGELQLGKELTKEDGAKFKFDVMLAYSSSGSNDWEG-- 73
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  178 SNLNIRQAFAELGALPSFTGafkDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYDVKWNDTfRSNFSLYGRNFGDL 257
Cdd:pfam02264  74 TDFNLRQAYVEASNLLPFLP---EATLWAGKRFYRRN-DIHINDFYYWDLSGTGAGVEDIDLGFG-KLSVALYRGDSDDL 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  258 D-----DIDNNVQNYILTMNHY--AGPFQLMVSGLRAKDNDDRKDANgdliqtDAANTGVhALVGLHNDTFYGlreGTAK 330
Cdd:pfam02264 149 SsvyngDVNNNRLDLRLTGIPLnpGGKLELGLDYGFANGNDDQTLGD------YAADDGW-MLTLQHTQDFLG---GFNK 218
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  331 TALLYGHGLGAEVKGIGSDGALL---SEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYVKGDSYEWVTFNTRLIKEV 407
Cdd:pfam02264 219 LALQYGTGLGAGNGAGGSGGGLTndpPDAKSFRVVEQGVWQLSDRFSLMYALVYQKSDDGTDNGDDYTWLSAGVRPMYAW 298
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  408 TQNFALAFEGSYQYMDlkpkgyQNHNAVNGSFYKLTFAPTLKAndINNFFSRPELRLFATWMDWSSKLDDF-ASNDAFGS 486
Cdd:pfam02264 299 TDNFKLLLELGYDYVD------DKGNDALGGLYKFTLAPTLKA--GSGFWSRPELRLFATYANWNDAADGAlAGGGGFGG 370
                         410
                  ....*....|....*....
gi 446199351  487 SgfntGGEWNFGVQMETWF 505
Cdd:pfam02264 371 D----TSGWNFGVQAEAWW 385
Maltoporin-like cd01346
The Maltoporin-like channels (LamB porin) form a trimeric structure which facilitate the ...
95-505 1.12e-111

The Maltoporin-like channels (LamB porin) form a trimeric structure which facilitate the diffusion of maltodextrins and other sugars across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an 18-strand antiparallel beta-barrel (18,22). Loop 3 folds into the core to constrict pore size. Long irregular loops are found on the extracelllular side, while short turns are in the periplasm.Tightly-bound water molecules are found in the eyelet of the passage, and only substrates that can displace and replace the broken hydrogen bonds are likely to enter the pore. In the MPR structure, loops 4,6, and 9 have the greatest mobility and are highly variable; these are postulated to attract maltodextrins.


Pssm-ID: 238656  Cd Length: 392  Bit Score: 336.27  E-value: 1.12e-111
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  95 FEFHGYARSGLLMNDAASSSKSGpyltpAGETGGAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWT 174
Cdd:cd01346    1 FEFHGYARSGVGYSDGGGAQTCF-----AGGGGGSVGRLGNECDTYFELGLKKEVYNDNGVTADFVVMVAQGNGQSNDWT 75
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 175 GGSSN--LNIRQAFAELGALPSFtgaFKDSTVWAGKRFDRdNFDIHWLDSDVVFLAGTGGGIYDVKWNDtFRSNFSLYGR 252
Cdd:cd01346   76 FAADDgdLNVRQAYVELKGLLPF---LPGATFWAGKRFYR-RHDIHILDFYYWNTSGTGAGIENVQLGD-GKLSFALVRS 150
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 253 NFGDLDDI-DNNVQNYILTMNHYA------GPFQLMVSGLRAKDNDDrkdangdliQTDAANTGVHALVGLHNDTFYGlr 325
Cdd:cd01346  151 DNQDDDTTyDSDTNLNAIDLRYAGiplnpgGSLQLGGKYGFANDSDS---------GYYDAKDGWMLTALHHQKDFLG-- 219
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 326 eGTAKTALLYGHGLGAEVKGIGSD-GALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYVKGDSYEWVTFNTRLI 404
Cdd:cd01346  220 -GFNKTALQYGTGAGSGQGGSGGDyGGLDDGASSWRLAEYGEWQLGDRFGGGVALVYQRGNDPYGYGDDYQWASVGVRPA 298
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 405 KEVTQNFALAFEGSYQYMDLKPKGYQnhnAVNGSFYKLTFAPTLKANDInnFFSRPELRLFATWMDWSSKLDDFASndAF 484
Cdd:cd01346  299 YKWSDNFKTAFEVGYDTVKADDGGGV---TDDGSLYKLTVAPTFSAGTD--FWSRPELRFYATYSNWNDAALRAFT--AF 371
                        410       420
                 ....*....|....*....|.
gi 446199351 485 GSSGFNTGGEWNFGVQMETWF 505
Cdd:cd01346  372 GSAFGNSKDGWNFGVQVEAWW 392
LamB COG4580
Maltoporin (phage lambda and maltose receptor) [Carbohydrate transport and metabolism];
89-505 5.43e-51

Maltoporin (phage lambda and maltose receptor) [Carbohydrate transport and metabolism];


Pssm-ID: 443637  Cd Length: 408  Bit Score: 178.97  E-value: 5.43e-51
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  89 SAENSGFEFHGYARSGLLMNDAASSSKSgpYLTPAGetgGAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLA---D 165
Cdd:COG4580   19 AAQAQAVDFHGYLRSGIGASSDGGEQQC--FQLPGA---GSKYRLGNECDTYAELGLGQELYKEDGKTFYVDSMLAysnD 93
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 166 GQRDYNDWTGGSSNLNIRQAFAELGALPSFtgaFKDSTVWAGKRFDRDNfDIHWLD---SDVvflAGTGGGIYDVKWNDT 242
Cdd:COG4580   94 QSNDWESTNGDDGDFALRQAYVQAKGLIPA---LPGATFWAGKRYYQRH-DVHINDfyyWNI---SGPGAGIENIDLGFG 166
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 243 frsNFSL---YGRNFGDLDDIDNNVQNYILTMNHY------AGPFQLMVSGLRAKDNDDRKDANGdliqtdaantGVhAL 313
Cdd:COG4580  167 ---KLSYawtRNDENDGSNSGDQDVNVNRHDVRLAgikvnpGGKLELGVDYGRANGTDGQKDAKN----------GW-ML 232
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 314 VGLHndTFYGLREGTAKTALLYGHGLGAEV-KGIGSDGALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRyVKGD 392
Cdd:COG4580  233 TAEH--TQGNFLGGFNKLALQYGTGAGALQgLGGTGDTSADNDAKSWRVIDHGVWQLTDRFSGMYVAVYQKDDDR-DDGD 309
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 393 SYEWVTFNTRLIKEVTQNFALAFEGSYQYmdLKPKGyqnhnAVNGSFYKLTFAPTLKANDinNFFSRPELRLFATWMDWS 472
Cdd:COG4580  310 GQTWYSVGVRPVYAWTENFKLLLEVGYDR--VKPQD-----GDTRRLTKFTLAPTWSAGP--GFWSRPELRLFATYAKWN 380
                        410       420       430
                 ....*....|....*....|....*....|...
gi 446199351 473 SKLDDfASNDAFGSSgfntGGEWNFGVQMETWF 505
Cdd:COG4580  381 EAAQG-AATGTFGGD----TSGVTFGVQVEAWW 408
lamB PRK09360
maltoporin LamB;
96-504 1.91e-30

maltoporin LamB;


Pssm-ID: 236481  Cd Length: 415  Bit Score: 122.78  E-value: 1.91e-30
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  96 EFHGYARSGLlmndaaSSSKSGPYLTPAGETG-GAVGRLGDEADTYVELNVEHKQTLDNGATTRFKAMLADGQRDYNDWT 174
Cdd:PRK09360  27 DFHGYARSGI------GWTGSGGEQQCFQTTGaQSKYRLGNECETYAELKLGQELWKEGDKSFYFDSMVAYSVNQQNDWE 100
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 175 GGSSNL---NIrQAFAELGALPsftgafkDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYDVK---------WNDT 242
Cdd:PRK09360 101 STDPALrefNV-QAKNLIEWLP-------GATLWAGKRFYQRH-DVHMIDFYYWDISGPGAGIENIDlgfgklslaWTRN 171
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 243 FRSNFSlYGRNFGDLDDIDNNVQNYILTMnHYA-------GPFQLMVSGLRAKDNDDRKDANGdliqtdAANTGVhALVG 315
Cdd:PRK09360 172 TENGGS-YSFASNNIYDYTNDTANDVFDV-RLAgietnpgGSLELGVDYGRANLTDGYKLADG------ASKDGV-MFTA 242
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 316 LHNDTFYGlreGTAKTALLYG-HGLGAEVKGIGSDGALLSEANTWRFASYGTTPLGSGWYVAPAILAQSSKDRYvkGDSY 394
Cdd:PRK09360 243 EHTQSLLG---GFNKFVVQYAtDSMTSQGKGHSQGSSINNNGHMLRVIDHGAISLGDKWEMMYVLMYQDIDWDN--NNGT 317
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 395 EWVTFNTRLIKEVTQNFALAFEGSYQYMDlkpkgyQNHNAVNGSFYKLTFAPTLKANDinNFFSRPELRLFATWMDWssk 474
Cdd:PRK09360 318 TWYSVGVRPMYKWTPIMSTLLEAGYDNVK------SQRTGDKNNQYKITLAQQWQAGD--SIWSRPAIRVFATYAKW--- 386
                        410       420       430
                 ....*....|....*....|....*....|
gi 446199351 475 ldDFASNDAFGSSGFNTGGEWNFGVQMETW 504
Cdd:PRK09360 387 --DEKTDENGNSFSRGDDDEWTFGAQMEAW 414
PRK12395 PRK12395
maltoporin; Provisional
96-505 4.97e-12

maltoporin; Provisional


Pssm-ID: 183498  Cd Length: 419  Bit Score: 67.68  E-value: 4.97e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351  96 EFHGYARSGLLMNDAASSSKSgpyltpageTGGAVGRLGDEADTY--VELNVE-HKQTLDNGATTRFKAMLADGQRDYND 172
Cdd:PRK12395  28 DFHGYMRAGVGVSSDGGLAEW---------QKTMVGRLGNESDTYgeIGLGAEvYKKEDVSFYLDSMVSMLSDGSNDSET 98
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 173 WTGGSSNLNIRQAFAEL-GALPsftgAFKDSTVWAGKRFDRDNfDIHWLDSDVVFLAGTGGGIYdvkwNDTFRSNFSLYG 251
Cdd:PRK12395  99 TIGDDAQFGLRQLNLQIkGLIP----GDKEAVIWGGKRYYQRH-DLHIIDTKYWNISGSGAGIE----NYTVGPGAVSVA 169
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 252 RNFGDLDDIDNNVQ-------NYI----LTMNHYAGPFQLMVSGLRAKDNDDRKDANGDLIQTDaanTGVHALVGLHNDT 320
Cdd:PRK12395 170 WVRGDANDVDTRITgdsdvniNYIdvryAGFKPWAGSWTEVGIDYAMPNPTKQQKEYGGLYDAD---NAVMLTGEISQDM 246
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 321 FYGLRegtaKTALLYGHglgaevKGIGSDgaLLSEANTWrFASYGTTPLGSGWYVAPAILAQSSkDRYVKGDSYEWVTFN 400
Cdd:PRK12395 247 FGGYN----KLVLQYAN------KGLAQN--MISQGGGW-YDMWHKTDEAKGYRVINTGLIPIT-DKFSFNHVLTWGSAN 312
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351 401 TrlIKEVTQN---FALAFEGSYQYMD-LKPKG-----YQNHNAVNGSFY-----KLTFAPTLKANDinNFFSRPELRLFA 466
Cdd:PRK12395 313 D--ITEYTDKtnlISLVGRAQYQFTQyVRAIGevggfYQKDTYHNGSNYkqggeKYTIALGLAEGP--DFLSRPELRVFA 388
                        410       420       430
                 ....*....|....*....|....*....|....*....
gi 446199351 467 TWMDWSSKLDDFASNDAfgssgfntGGEWNFGVQMETWF 505
Cdd:PRK12395 389 SYLNDSENGKPFEDGTS--------NDTWNFGVQVEAWW 419
Sugarporin_N pfam11471
Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, ...
28-58 4.93e-10

Maltoporin periplasmic N-terminal extension; This domain would appear to be the periplasmic, N-terminal extension of the outer membrane maltoporins, pfam02264, LamB.


Pssm-ID: 431901  Cd Length: 31  Bit Score: 54.57  E-value: 4.93e-10
                          10        20        30
                  ....*....|....*....|....*....|.
gi 446199351   28 SIESRLAALEQRLKNAESRAQAAEARAKTAE 58
Cdd:pfam11471   1 TVEQRLAALEKRLQEAEARAQKAEARAKEAE 31
PilN COG3166
Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];
8-103 1.50e-03

Type IV pilus assembly protein PilN [Cell motility, Extracellular structures];


Pssm-ID: 442399 [Multi-domain]  Cd Length: 185  Bit Score: 39.56  E-value: 1.50e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   8 AMLIALLTGATTVHAQTDISSIESRLAALEQRLKNAESR-AQAAEARAKTAELQ-----VQKLAETQQQNQLTTQEVAQR 81
Cdd:COG3166   29 LLLALAVLFLVYLYLQGQIAQQQARNAALQQEIAKLDKQiAEIKELKKQKAELLarlqvIEQLQQSRPPWVHLLDELARL 108
                         90       100
                 ....*....|....*....|....*
gi 446199351  82 T---VQLEQKSAENSGFEFHGYARS 103
Cdd:COG3166  109 LpegVWLTSLSQQGGTLTLTGVAQS 133
V-ATPase_G_2 pfam16999
Vacuolar (H+)-ATPase G subunit; This family represents vacuolar (H+)-ATPase G subunit from ...
26-66 4.69e-03

Vacuolar (H+)-ATPase G subunit; This family represents vacuolar (H+)-ATPase G subunit from several bacterial and archaeal species. Subunit G is a component of the peripheral stalk of the ATPase complex


Pssm-ID: 339878 [Multi-domain]  Cd Length: 104  Bit Score: 36.65  E-value: 4.69e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 446199351   26 ISSIESRLAALEQRL----KNAESRAQAAEARAK----TAELQVQKLAE 66
Cdd:pfam16999   7 LSELAEREAALDQQIeaarKEAEREVEAAEAEAArilrEAEAKAKALQA 55
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
8-91 5.16e-03

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 39.36  E-value: 5.16e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446199351   8 AMLIALLTGATTVHAQTDISSIESRLAALEQRLKNAESRAQAAEARAKTAELQV----QKLAETQQQNQLTTQEVAQRTV 83
Cdd:COG4942    4 LLLLALLLALAAAAQADAAAEAEAELEQLQQEIAELEKELAALKKEEKALLKQLaaleRRIAALARRIRALEQELAALEA 83

                 ....*...
gi 446199351  84 QLEQKSAE 91
Cdd:COG4942   84 ELAELEKE 91
 
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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