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1SIW

Crystal structure of the apomolybdo-NarGHI

Functional Information from GO Data
ChainGOidnamespacecontents
A0005515molecular_functionprotein binding
A0005886cellular_componentplasma membrane
A0008940molecular_functionnitrate reductase activity
A0009055molecular_functionelectron transfer activity
A0009061biological_processanaerobic respiration
A0009325cellular_componentnitrate reductase complex
A0016020cellular_componentmembrane
A0016491molecular_functionoxidoreductase activity
A0019645biological_processanaerobic electron transport chain
A0042126biological_processnitrate metabolic process
A0043546molecular_functionmolybdopterin cofactor binding
A0044799cellular_componentNarGHI complex
A0051539molecular_function4 iron, 4 sulfur cluster binding
A0160182molecular_functionnitrate reductase (quinone) activity
B0005515molecular_functionprotein binding
B0005886cellular_componentplasma membrane
B0008940molecular_functionnitrate reductase activity
B0009055molecular_functionelectron transfer activity
B0009061biological_processanaerobic respiration
B0009325cellular_componentnitrate reductase complex
B0016020cellular_componentmembrane
B0019645biological_processanaerobic electron transport chain
B0042126biological_processnitrate metabolic process
B0044799cellular_componentNarGHI complex
B0051538molecular_function3 iron, 4 sulfur cluster binding
B0051539molecular_function4 iron, 4 sulfur cluster binding
B0160182molecular_functionnitrate reductase (quinone) activity
C0005886cellular_componentplasma membrane
C0008940molecular_functionnitrate reductase activity
C0009055molecular_functionelectron transfer activity
C0009061biological_processanaerobic respiration
C0009325cellular_componentnitrate reductase complex
C0016020cellular_componentmembrane
C0019645biological_processanaerobic electron transport chain
C0020037molecular_functionheme binding
C0042126biological_processnitrate metabolic process
C0044799cellular_componentNarGHI complex
C0160182molecular_functionnitrate reductase (quinone) activity
Functional Information from PDB Data
site_idAC1
Number of Residues21
DetailsBINDING SITE FOR RESIDUE GDP A 1247
ChainResidue
AGLY50
AASP772
APHE773
AARG774
ATHR788
ATRP791
ALYS794
AASP822
AILE1097
AHIS1098
ASER1099
ATYR220
ATHR1100
AHOH1597
AARG713
ASER714
AASN715
ALEU716
ASER719
ASER720
ALEU771

site_idAC2
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM C 806
ChainResidue
BILE88
BTRP220
BARG221
CSER39
CSER40
CGLN41
CMET48
CPHE55
CHIS56
CILE59
CARG112
CLEU130
CARG202
CHIS205
CILE206
CVAL209
CHOH809
CHOH812
CHOH815

site_idAC3
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM C 807
ChainResidue
CILE59
CILE62
CHIS66
CALA90
CGLY94
CLEU133
CGLN136
CCYS137
CGLY140
CSER147
CMET156
CLEU159
CHIS187
CLEU188
CGLY191
CMET192
CPHE195
CHOH829

site_idAC4
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SF4 A 1248
ChainResidue
AHIS49
AGLY55
ASER56
ACYS57
ATRP59
AGLY91
ACYS92
AHOH1584
AHOH1633

site_idAC5
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SF4 B 802
ChainResidue
BCYS16
BILE17
BCYS19
BHIS20
BCYS22
BCYS263
BVAL264
BGLY265
BILE267
BARG268

site_idAC6
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SF4 B 803
ChainResidue
BCYS26
BTRP30
BASN42
BCYS244
BILE245
BPHE246
BCYS247
BTHR257
BCYS259

site_idAC7
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SF4 B 804
ChainResidue
BCYS184
BGLU185
BCYS187
BPRO190
BALA191
BCYS192
BCYS227
BTYR229
BILE232
BLYS243

site_idAC8
Number of Residues11
DetailsBINDING SITE FOR RESIDUE F3S B 805
ChainResidue
BCYS217
BARG218
BGLY219
BTRP220
BARG221
BMET222
BCYS223
BSER241
BCYS196
BSER198
BILE201

site_idAC9
Number of Residues8
DetailsBINDING SITE FOR RESIDUE 3PH A 1309
ChainResidue
APHE3
AARG6
AHOH1620
BARG218
CTRP25
CTYR28
CTRP207
CSER208

site_idBC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE 3PH B 1310
ChainResidue
BHOH1453
CGLY124
CALA125
CPHE200
CHOH824

Functional Information from PROSITE/UniProt
site_idPS00490
Number of Residues18
DetailsMOLYBDOPTERIN_PROK_2 Prokaryotic molybdopterin oxidoreductases signature 2. SsTClySDIILPtATwyE
ChainResidueDetails
ASER776-GLU793

site_idPS00551
Number of Residues19
DetailsMOLYBDOPTERIN_PROK_1 Prokaryotic molybdopterin oxidoreductases signature 1. StHgvnCTGsCsWkIyvk.N
ChainResidueDetails
ASER47-ASN65

site_idPS00932
Number of Residues28
DetailsMOLYBDOPTERIN_PROK_3 Prokaryotic molybdopterin oxidoreductases signature 3. AkdlGIaDnDwIeVfNsnGaltarAvVS
ChainResidueDetails
AALA1124-SER1151

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues28
DetailsDomain: {"description":"4Fe-4S ferredoxin-type 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00711","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues31
DetailsDomain: {"description":"4Fe-4S ferredoxin-type 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00711","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues29
DetailsDomain: {"description":"4Fe-4S ferredoxin-type 3","evidences":[{"source":"PROSITE-ProRule","id":"PRU00711","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues15
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"12910261","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"14725769","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues25
DetailsTransmembrane: {"description":"Helical; Name=1"}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues28
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"15919996","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues29
DetailsTransmembrane: {"description":"Helical; Name=3"}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues23
DetailsTransmembrane: {"description":"Helical; Name=4"}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues33
DetailsTopological domain: {"description":"Periplasmic","evidences":[{"source":"PubMed","id":"15919996","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues15
DetailsTransmembrane: {"description":"Helical; Name=5"}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues4
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PubMed","id":"12910261","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues1
DetailsAnnotated By Reference To The Literature 1tmo
ChainResidueDetails
ACYS213

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PDB entries from 2026-03-25

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