NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|2194695753|ref|WP_238593006|]
View 

dihydrodipicolinate reductase [Kandleria vitulina]

Protein Classification

COG3804 family protein( domain architecture ID 11467356)

COG3804 family protein

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
COG3804 COG3804
Uncharacterized conserved protein [Function unknown];
3-337 1.47e-124

Uncharacterized conserved protein [Function unknown];


:

Pssm-ID: 443017 [Multi-domain]  Cd Length: 338  Bit Score: 360.65  E-value: 1.47e-124
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   3 KIRVVQYGCGKMAKYILRY-LYESGCQIVGAIDVNPEIIGMDVGEFAGLDVNLGVTISNNADEVLDEtDPDIAVVTLFSL 81
Cdd:COG3804     1 KIRVVQWGTGNMGRGAIRAiLAHPGLELVGAIDHSPAKVGKDAGELAGLGRPLGVKATDDADAVLAL-DADVVVYATDSR 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753  82 VEDCYEHFEKCLLRGINVITTCEESTYSWTTSAKLTHKLDVIAKENDCTFVGAGMEDVFWVN-MVAMVASACHKIERIEG 160
Cdd:COG3804    80 LEEAVDDLERLLEAGVNVVTTAEELAYPWATSPELAARLDAAAKEGGVTLLGTGINPGFVNDlLPLALTGLCRRIDKIRV 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 161 AVSYNVEDYGLALAKAHGVGLDADTFEKEIAHPETIEPSYVWNSNEALAQKLGWTIESQQQECVPYFEDEDVfsKTLGET 240
Cdd:COG3804   160 QEIVDLSTYGEALAEAMGFGLTPEEFEEGIAAGPGVGHVGFGESVRMIADALGLELDEIEESLEPIVAEEDI--ETAGGT 237
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 241 IPKGKCVGMAAVVTTKTMQGPVIETRCIGKVYG--ENDGDMCDWKIIGEPDTEFHVV-KPATVEHTCATIVNRIPTVLYA 317
Cdd:COG3804   238 IPAGTVAGMRFTVTGYVDGGPVIELEHIWRVGPelEPDGDGDRVEIEGEPNITLTIEpEIPGGIATAARAVNAIPAVIAA 317
                         330       340
                  ....*....|....*....|
gi 2194695753 318 EPGVVTLDELEPMDYLTYPM 337
Cdd:COG3804   318 PPGLVTMLDLPLPRGRLGLL 337
 
Name Accession Description Interval E-value
COG3804 COG3804
Uncharacterized conserved protein [Function unknown];
3-337 1.47e-124

Uncharacterized conserved protein [Function unknown];


Pssm-ID: 443017 [Multi-domain]  Cd Length: 338  Bit Score: 360.65  E-value: 1.47e-124
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   3 KIRVVQYGCGKMAKYILRY-LYESGCQIVGAIDVNPEIIGMDVGEFAGLDVNLGVTISNNADEVLDEtDPDIAVVTLFSL 81
Cdd:COG3804     1 KIRVVQWGTGNMGRGAIRAiLAHPGLELVGAIDHSPAKVGKDAGELAGLGRPLGVKATDDADAVLAL-DADVVVYATDSR 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753  82 VEDCYEHFEKCLLRGINVITTCEESTYSWTTSAKLTHKLDVIAKENDCTFVGAGMEDVFWVN-MVAMVASACHKIERIEG 160
Cdd:COG3804    80 LEEAVDDLERLLEAGVNVVTTAEELAYPWATSPELAARLDAAAKEGGVTLLGTGINPGFVNDlLPLALTGLCRRIDKIRV 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 161 AVSYNVEDYGLALAKAHGVGLDADTFEKEIAHPETIEPSYVWNSNEALAQKLGWTIESQQQECVPYFEDEDVfsKTLGET 240
Cdd:COG3804   160 QEIVDLSTYGEALAEAMGFGLTPEEFEEGIAAGPGVGHVGFGESVRMIADALGLELDEIEESLEPIVAEEDI--ETAGGT 237
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 241 IPKGKCVGMAAVVTTKTMQGPVIETRCIGKVYG--ENDGDMCDWKIIGEPDTEFHVV-KPATVEHTCATIVNRIPTVLYA 317
Cdd:COG3804   238 IPAGTVAGMRFTVTGYVDGGPVIELEHIWRVGPelEPDGDGDRVEIEGEPNITLTIEpEIPGGIATAARAVNAIPAVIAA 317
                         330       340
                  ....*....|....*....|
gi 2194695753 318 EPGVVTLDELEPMDYLTYPM 337
Cdd:COG3804   318 PPGLVTMLDLPLPRGRLGLL 337
nat-AmDH_N_like cd24146
N-terminal NAD(P)-binding domain of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) ...
4-151 5.68e-51

N-terminal NAD(P)-binding domain of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) and similar proteins; The family corresponds to a group of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) that catalyze the reductive amination of ketone and aldehyde substrates using NAD(P)H as the hydride source. nat-AmDHs can naturally catalyze the amination of 'neutral' carbonyl compounds using ammonia. They possess tremendous potential for the efficient asymmetric synthesis of alpha-chiral amines. The family also contains 2,4-diaminopentanoate dehydrogenase (DAPDH) and similar proteins. DAPDH, also known as ORD, is involved in the ornithine fermentation pathway. It catalyzes the oxidative deamination of (2R,4S)-2,4-diaminopentanoate ((2R,4S)-DAP) to yield 2-amino-4-ketopentanoate (AKP). Although DAPDH is more efficient with (2R,4S)-DAP, the diastereoisomer (2R,4R)-DAP can also be metabolized. Different forms of DAPDH exist which utilize NAD(+) (EC 1.4.1.26) or NAD(+)/NADP(+) (EC 1.4.1.12). Members of this family contain an N-terminal Rossmann fold NAD(P)-binding domain and a C-terminal dimerization domain.


Pssm-ID: 467616 [Multi-domain]  Cd Length: 157  Bit Score: 166.56  E-value: 5.68e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGCGKMAKYILRYLYES-GCQIVGAIDVNPEIIGMDVGEfAGLDVNLGVTISNNADEVLDETDPDIAVVTLFSLV 82
Cdd:cd24146     1 IRVVVWGLGAMGRGIARYLLEKpGLEIVGAVDRDPAKVGKDLGE-LGGGAPLGVKVTDDLDAVLAATKPDVVVHATTSFL 79
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2194695753  83 EDCYEHFEKCLLRGINVITTCEESTYSWTTSAKLTHKLDVIAKENDCTFVGAGMEDV----FWVNMVAMVASA 151
Cdd:cd24146    80 ADVAPQIERLLEAGLNVITTCEELFYPWARDPELAEELDALAKENGVTVLGTGPGDVataaIVVNRIPDVIAA 152
DapB_N pfam01113
Dihydrodipicolinate reductase, N-terminus; Dihydrodipicolinate reductase (DapB) reduces the ...
4-102 1.04e-09

Dihydrodipicolinate reductase, N-terminus; Dihydrodipicolinate reductase (DapB) reduces the alpha,beta-unsaturated cyclic imine, dihydro-dipicolinate. This reaction is the second committed step in the biosynthesis of L-lysine and its precursor meso-diaminopimelate, which are critical for both protein and cell wall biosynthesis. The N-terminal domain of DapB binds the dinucleotide NADPH.


Pssm-ID: 460069 [Multi-domain]  Cd Length: 121  Bit Score: 55.70  E-value: 1.04e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGC-GKMAKYILRYLYES-GCQIVGAIDVNP-EIIGMDVGEFAGLdvnlGVTISNNADEVLDETDpdiaVVTLFS 80
Cdd:pfam01113   1 IKIAVAGAsGRMGRELIKAVLEApDLELVAAVDRPGsSLLGSDAGELAPL----GVPVTDDLEEVLADAD----VLIDFT 72
                          90       100
                  ....*....|....*....|....
gi 2194695753  81 LVEDCYEHFEKCLLRGINVI--TT 102
Cdd:pfam01113  73 TPEATLENLEFALKHGVPLVigTT 96
PRK05472 PRK05472
redox-sensing transcriptional repressor Rex; Provisional
2-77 3.18e-05

redox-sensing transcriptional repressor Rex; Provisional


Pssm-ID: 235486 [Multi-domain]  Cd Length: 213  Bit Score: 44.34  E-value: 3.18e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   2 KKIRVVQYGCGKMAKYILRY--LYESGCQIVGAIDVNPEIIGMDVGefagldvnlGVTISNNAD--EVLDETDPDIAVVT 77
Cdd:PRK05472   83 RTWNVALVGAGNLGRALLNYngFEKRGFKIVAAFDVDPEKIGTKIG---------GIPVYHIDEleEVVKENDIEIGILT 153
 
Name Accession Description Interval E-value
COG3804 COG3804
Uncharacterized conserved protein [Function unknown];
3-337 1.47e-124

Uncharacterized conserved protein [Function unknown];


Pssm-ID: 443017 [Multi-domain]  Cd Length: 338  Bit Score: 360.65  E-value: 1.47e-124
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   3 KIRVVQYGCGKMAKYILRY-LYESGCQIVGAIDVNPEIIGMDVGEFAGLDVNLGVTISNNADEVLDEtDPDIAVVTLFSL 81
Cdd:COG3804     1 KIRVVQWGTGNMGRGAIRAiLAHPGLELVGAIDHSPAKVGKDAGELAGLGRPLGVKATDDADAVLAL-DADVVVYATDSR 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753  82 VEDCYEHFEKCLLRGINVITTCEESTYSWTTSAKLTHKLDVIAKENDCTFVGAGMEDVFWVN-MVAMVASACHKIERIEG 160
Cdd:COG3804    80 LEEAVDDLERLLEAGVNVVTTAEELAYPWATSPELAARLDAAAKEGGVTLLGTGINPGFVNDlLPLALTGLCRRIDKIRV 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 161 AVSYNVEDYGLALAKAHGVGLDADTFEKEIAHPETIEPSYVWNSNEALAQKLGWTIESQQQECVPYFEDEDVfsKTLGET 240
Cdd:COG3804   160 QEIVDLSTYGEALAEAMGFGLTPEEFEEGIAAGPGVGHVGFGESVRMIADALGLELDEIEESLEPIVAEEDI--ETAGGT 237
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753 241 IPKGKCVGMAAVVTTKTMQGPVIETRCIGKVYG--ENDGDMCDWKIIGEPDTEFHVV-KPATVEHTCATIVNRIPTVLYA 317
Cdd:COG3804   238 IPAGTVAGMRFTVTGYVDGGPVIELEHIWRVGPelEPDGDGDRVEIEGEPNITLTIEpEIPGGIATAARAVNAIPAVIAA 317
                         330       340
                  ....*....|....*....|
gi 2194695753 318 EPGVVTLDELEPMDYLTYPM 337
Cdd:COG3804   318 PPGLVTMLDLPLPRGRLGLL 337
nat-AmDH_N_like cd24146
N-terminal NAD(P)-binding domain of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) ...
4-151 5.68e-51

N-terminal NAD(P)-binding domain of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) and similar proteins; The family corresponds to a group of native NAD(P)H-dependent amine dehydrogenases (nat-AmDHs) that catalyze the reductive amination of ketone and aldehyde substrates using NAD(P)H as the hydride source. nat-AmDHs can naturally catalyze the amination of 'neutral' carbonyl compounds using ammonia. They possess tremendous potential for the efficient asymmetric synthesis of alpha-chiral amines. The family also contains 2,4-diaminopentanoate dehydrogenase (DAPDH) and similar proteins. DAPDH, also known as ORD, is involved in the ornithine fermentation pathway. It catalyzes the oxidative deamination of (2R,4S)-2,4-diaminopentanoate ((2R,4S)-DAP) to yield 2-amino-4-ketopentanoate (AKP). Although DAPDH is more efficient with (2R,4S)-DAP, the diastereoisomer (2R,4R)-DAP can also be metabolized. Different forms of DAPDH exist which utilize NAD(+) (EC 1.4.1.26) or NAD(+)/NADP(+) (EC 1.4.1.12). Members of this family contain an N-terminal Rossmann fold NAD(P)-binding domain and a C-terminal dimerization domain.


Pssm-ID: 467616 [Multi-domain]  Cd Length: 157  Bit Score: 166.56  E-value: 5.68e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGCGKMAKYILRYLYES-GCQIVGAIDVNPEIIGMDVGEfAGLDVNLGVTISNNADEVLDETDPDIAVVTLFSLV 82
Cdd:cd24146     1 IRVVVWGLGAMGRGIARYLLEKpGLEIVGAVDRDPAKVGKDLGE-LGGGAPLGVKVTDDLDAVLAATKPDVVVHATTSFL 79
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2194695753  83 EDCYEHFEKCLLRGINVITTCEESTYSWTTSAKLTHKLDVIAKENDCTFVGAGMEDV----FWVNMVAMVASA 151
Cdd:cd24146    80 ADVAPQIERLLEAGLNVITTCEELFYPWARDPELAEELDALAKENGVTVLGTGPGDVataaIVVNRIPDVIAA 152
DHDPR_N cd02274
N-terminal NAD(P)-binding domain of dihydrodipicolinate reductase (DHDPR) and similar proteins; ...
4-102 6.99e-11

N-terminal NAD(P)-binding domain of dihydrodipicolinate reductase (DHDPR) and similar proteins; DHDPR (EC 1.17.1.8), also called 4-hydroxy-tetrahydrodipicolinate reductase, or HTPA reductase, is a product of an essential gene referred to as dapB. It catalyzes the NAD(P)H-dependent reduction of 2,3-dihydrodipicolinate (DHDP) to 2,3,4,5-tetrahydrodipicolinate (THDP). DHDPR could also function as a dehydratase in addition to the role of a nucleotide dependent reductase. DHDPR is a component of the biosynthetic pathway that generates meso-diaminopimelate, a component of bacterial cell walls, and the amino acid L-lysine in various bacteria, archaea, cyanobacteria and higher plants. The enzyme is a homotetramer where each monomer is composed of two domains, an N-terminal NAD(P)-binding domain which forms a Rossmann fold, and a C-terminal substrate-binding domain that forms an open, mixed alpha-beta sandwich.


Pssm-ID: 467611 [Multi-domain]  Cd Length: 139  Bit Score: 59.50  E-value: 6.99e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGC-GKMAKYILRYLYES-GCQIVGAIDVNP-EIIGMDVGEFAGLdvnlGVTISNNADEVLDETDPDIAVVtlFS 80
Cdd:cd02274     1 IKVAVAGAtGRMGRELVKAILEApDLELVGAVDRPGsGLLGGDAGGLAGI----GTGVIVSLDLELAAADADVVID--FT 74
                          90       100
                  ....*....|....*....|....
gi 2194695753  81 LVEDCYEHFEKCLLRGINVI--TT 102
Cdd:cd02274    75 TPEATLENLEAAAKAGVPLVigTT 98
DapB_N pfam01113
Dihydrodipicolinate reductase, N-terminus; Dihydrodipicolinate reductase (DapB) reduces the ...
4-102 1.04e-09

Dihydrodipicolinate reductase, N-terminus; Dihydrodipicolinate reductase (DapB) reduces the alpha,beta-unsaturated cyclic imine, dihydro-dipicolinate. This reaction is the second committed step in the biosynthesis of L-lysine and its precursor meso-diaminopimelate, which are critical for both protein and cell wall biosynthesis. The N-terminal domain of DapB binds the dinucleotide NADPH.


Pssm-ID: 460069 [Multi-domain]  Cd Length: 121  Bit Score: 55.70  E-value: 1.04e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGC-GKMAKYILRYLYES-GCQIVGAIDVNP-EIIGMDVGEFAGLdvnlGVTISNNADEVLDETDpdiaVVTLFS 80
Cdd:pfam01113   1 IKIAVAGAsGRMGRELIKAVLEApDLELVAAVDRPGsSLLGSDAGELAPL----GVPVTDDLEEVLADAD----VLIDFT 72
                          90       100
                  ....*....|....*....|....
gi 2194695753  81 LVEDCYEHFEKCLLRGINVI--TT 102
Cdd:pfam01113  73 TPEATLENLEFALKHGVPLVigTT 96
PRK05472 PRK05472
redox-sensing transcriptional repressor Rex; Provisional
2-77 3.18e-05

redox-sensing transcriptional repressor Rex; Provisional


Pssm-ID: 235486 [Multi-domain]  Cd Length: 213  Bit Score: 44.34  E-value: 3.18e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   2 KKIRVVQYGCGKMAKYILRY--LYESGCQIVGAIDVNPEIIGMDVGefagldvnlGVTISNNAD--EVLDETDPDIAVVT 77
Cdd:PRK05472   83 RTWNVALVGAGNLGRALLNYngFEKRGFKIVAAFDVDPEKIGTKIG---------GIPVYHIDEleEVVKENDIEIGILT 153
GFO_IDH_MocA pfam01408
Oxidoreductase family, NAD-binding Rossmann fold; This family of enzymes utilize NADP or NAD. ...
4-131 8.71e-05

Oxidoreductase family, NAD-binding Rossmann fold; This family of enzymes utilize NADP or NAD. This family is called the GFO/IDH/MOCA family in swiss-prot.


Pssm-ID: 426248 [Multi-domain]  Cd Length: 120  Bit Score: 41.43  E-value: 8.71e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   4 IRVVQYGCGKMAKYILRYLYES--GCQIVGAIDVNPEiigmdvgefAGLDV--NLGVTISNNADEVLDETDPDIAVVTlf 79
Cdd:pfam01408   1 IRVGIIGAGKIGSKHARALNASqpGAELVAILDPNSE---------RAEAVaeSFGVEVYSDLEELLNDPEIDAVIVA-- 69
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 2194695753  80 slVEDC--YEHFEKCLLRGINVIttCEestYSWTTSAKLTHKLDVIAKENDCTF 131
Cdd:pfam01408  70 --TPNGlhYDLAIAALEAGKHVL--CE---KPLATTVEEAKELVELAKKKGVRV 116
FlaA1 COG1086
NDP-sugar epimerase, includes UDP-GlcNAc-inverting 4,6-dehydratase FlaA1 and capsular ...
1-101 1.22e-04

NDP-sugar epimerase, includes UDP-GlcNAc-inverting 4,6-dehydratase FlaA1 and capsular polysaccharide biosynthesis protein EpsC [Cell wall/membrane/envelope biogenesis, Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 440703 [Multi-domain]  Cd Length: 121  Bit Score: 41.06  E-value: 1.22e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   1 MKKIRVVQYGCGKMAKYILRYL---YESGCQIVGAIDVNPEIIGMDVgefAGLDVnLGVTisNNADEVLDETDPDIAVVT 77
Cdd:COG1086    19 RNKRRVLIVGAGEAGRQLARALrrnPDLGYRVVGFVDDDPDKRGRRI---EGVPV-LGTL--DDLPELVRRLGVDEVIIA 92
                          90       100
                  ....*....|....*....|....*
gi 2194695753  78 LFSLVEDCY-EHFEKCLLRGINVIT 101
Cdd:COG1086    93 LPSASRERLrELLEQLEDLGVKVKI 117
CoA_binding pfam02629
CoA binding domain; This domain has a Rossmann fold and is found in a number of proteins ...
1-78 4.77e-04

CoA binding domain; This domain has a Rossmann fold and is found in a number of proteins including succinyl CoA synthetases, malate and ATP-citrate ligases.


Pssm-ID: 396961 [Multi-domain]  Cd Length: 97  Bit Score: 38.73  E-value: 4.77e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2194695753   1 MKKIRVVQYGCGKMAKYILRYLYES--GCQIVGAIDVNPEIIGMDVGefagldvnlGVTISNNADEVLDETDPDIAVVTL 78
Cdd:pfam02629   1 DKDTKVIVIGAGGLGIQGLNYHFIQmlGYGIKMVFGVNPGKGGTEIL---------GIPVYNSVDELEEKTGVDVAVITV 71
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH