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1H9Y

Cytochrome cd1 Nitrite Reductase, reduced form complexed to CN

Functional Information from GO Data
ChainGOidnamespacecontents
A0009055molecular_functionelectron transfer activity
A0020037molecular_functionheme binding
A0042597cellular_componentperiplasmic space
A0050418molecular_functionhydroxylamine reductase activity
A0050421molecular_functionnitrite reductase (NO-forming) activity
B0009055molecular_functionelectron transfer activity
B0020037molecular_functionheme binding
B0042597cellular_componentperiplasmic space
B0050418molecular_functionhydroxylamine reductase activity
B0050421molecular_functionnitrite reductase (NO-forming) activity
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 621
ChainResidue
AGLY70
AVAL71
ALEU72
AARG73
ALYS74

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 B 621
ChainResidue
BHOH2124
AARG354
ALYS372
AGLU373
BLYS79

site_idAC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 B 622
ChainResidue
AHIS307
AHIS353

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CYN A 603
ChainResidue
AHIS345
AHIS388
ADHE602

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CYN B 603
ChainResidue
BHIS345
BHIS388
BDHE602

site_idAC6
Number of Residues17
DetailsBINDING SITE FOR RESIDUE HEC A 601
ChainResidue
AARG64
ACYS65
ACYS68
AHIS69
ATHR77
AGLY78
ALYS79
ATYR93
ALEU94
APHE97
ASER102
AALA104
AGLY105
AMET106
APRO107
ATRP109
ALEU127

site_idAC7
Number of Residues25
DetailsBINDING SITE FOR RESIDUE DHE A 602
ChainResidue
AARG174
AHIS200
AILE201
AARG203
AARG216
AARG243
ASER244
AILE245
ATYR263
AALA301
AALA302
AILE303
AHIS345
AARG391
APHE444
AGLN507
ATHR554
AGLY555
APHE557
ACYN603
AHOH2036
AHOH2115
AHOH2116
AHOH2117
AHOH2118

site_idAC8
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEC B 601
ChainResidue
ALYS372
BARG64
BCYS65
BCYS68
BHIS69
BTHR77
BGLY78
BLYS79
BLEU81
BLEU89
BTYR93
BPHE97
BILE98
BSER102
BALA104
BGLY105
BMET106
BPRO107
BTRP109
BHOH2006
BHOH2120

site_idAC9
Number of Residues25
DetailsBINDING SITE FOR RESIDUE DHE B 602
ChainResidue
BPHE557
BCYN603
BHOH2031
BHOH2039
BHOH2121
BHOH2122
BHOH2123
BARG174
BHIS200
BILE201
BARG203
BARG216
BARG243
BSER244
BILE245
BTYR263
BALA301
BALA302
BILE303
BHIS345
BARG391
BPHE444
BGLN507
BTHR554
BGLY555

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues85
DetailsDomain: {"description":"Cytochrome c","evidences":[{"source":"PROSITE-ProRule","id":"PRU00433","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues866
DetailsRegion: {"description":"D1-heme domain"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {"description":"covalent","evidences":[{"source":"PubMed","id":"7736589","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1QKS","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PubMed","id":"7736589","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1QKS","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues22
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"7736589","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1QKS","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1nir
ChainResidueDetails
AHIS388
AHIS345

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1nir
ChainResidueDetails
BHIS388
BHIS345

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PDB entries from 2026-04-01

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