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1QO8

The structure of the open conformation of a flavocytochrome c3 fumarate reductase

Functional Information from GO Data
ChainGOidnamespacecontents
A0010181molecular_functionFMN binding
A0016491molecular_functionoxidoreductase activity
A0016627molecular_functionoxidoreductase activity, acting on the CH-CH group of donors
A0042597cellular_componentperiplasmic space
D0010181molecular_functionFMN binding
D0016491molecular_functionoxidoreductase activity
D0016627molecular_functionoxidoreductase activity, acting on the CH-CH group of donors
D0042597cellular_componentperiplasmic space
Functional Information from PDB Data
site_idAC1
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM A 601
ChainResidue
APHE53
AILE162
AASN333
AILE369
ALEU433
AHEM602
AHOH2164
AHOH2348
AHOH2349
AHOH2350
AHOH2351
AASP54
AHOH2352
ASER58
AHIS59
ALEU60
ACYS79
ACYS82
AHIS83
APHE85

site_idAC2
Number of Residues12
DetailsBINDING SITE FOR RESIDUE HEM A 602
ChainResidue
AHIS40
ATYR43
ALEU46
APRO55
AHIS56
ACYS65
ACYS68
AHIS69
ALYS88
AMET90
AHEM601
AHEM603

site_idAC3
Number of Residues14
DetailsBINDING SITE FOR RESIDUE HEM A 603
ChainResidue
AMET5
AHIS9
ASER17
AGLN35
ACYS36
ACYS39
AHIS40
AHIS69
APRO91
AASP227
AHEM602
AHEM604
AHOH2354
AHOH2355

site_idAC4
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM A 604
ChainResidue
AGLY6
AHIS9
ACYS15
ACYS18
AHIS19
AGLU29
ATHR66
ALYS70
AGLY71
AHIS72
AHIS293
AVAL467
AALA468
ASER469
AGLY470
AHEM603
AHOH2072
AHOH2356

site_idAC5
Number of Residues42
DetailsBINDING SITE FOR RESIDUE FAD A 605
ChainResidue
AHOH2110
AHOH2189
AHOH2191
AHOH2216
AHOH2339
AHOH2357
AHOH2358
AVAL127
AGLY128
AGLY130
ASER131
AALA132
AASP151
ALYS152
AGLY157
AGLY158
AASN159
ASER160
ASER163
AALA164
AGLY165
AGLY166
ASER271
AARG272
AVAL273
AALA307
ATHR308
AGLY309
ASER331
AASN332
ATHR335
AASP339
AHIS499
AHIS500
AGLY528
AGLU529
AARG539
AGLY542
AASN543
AALA544
AILE545
ATHR548

site_idAC6
Number of Residues13
DetailsBINDING SITE FOR RESIDUE HEM D 601
ChainResidue
DASP54
DSER58
DHIS59
DLEU60
DCYS79
DCYS82
DHIS83
DPHE85
DILE162
DASN333
DILE369
DLEU433
DHEM602

site_idAC7
Number of Residues14
DetailsBINDING SITE FOR RESIDUE HEM D 602
ChainResidue
DHIS40
DTYR43
DLEU46
DPRO55
DHIS56
DCYS65
DCYS68
DHIS69
DPHE77
DLYS88
DMET90
DLYS193
DHEM601
DHEM603

site_idAC8
Number of Residues11
DetailsBINDING SITE FOR RESIDUE HEM D 603
ChainResidue
DMET5
DHIS9
DSER17
DCYS36
DCYS39
DHIS40
DHIS69
DPRO91
DPHE92
DLYS193
DHEM602

site_idAC9
Number of Residues15
DetailsBINDING SITE FOR RESIDUE HEM D 604
ChainResidue
DMET5
DGLY6
DHIS9
DCYS15
DCYS18
DHIS19
DILE23
DVAL25
DTHR66
DLYS70
DGLY71
DHIS72
DGLU73
DHIS293
DHOH2146

site_idBC1
Number of Residues39
DetailsBINDING SITE FOR RESIDUE FAD D 605
ChainResidue
DVAL127
DGLY128
DGLY130
DSER131
DALA132
DASP151
DLYS152
DGLY157
DGLY158
DASN159
DSER160
DSER163
DALA164
DGLY165
DSER271
DARG272
DVAL273
DALA307
DTHR308
DGLY309
DSER331
DASN332
DTHR335
DASP339
DHIS499
DHIS500
DGLY528
DGLU529
DARG539
DGLY542
DASN543
DALA544
DILE545
DTHR548
DHOH2132
DHOH2134
DHOH2147
DHOH2148
DHOH2149

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"UniProtKB","id":"P0C278","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues16
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PubMed","id":"10581549","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1QO8","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues16
DetailsBinding site: {"description":"covalent","evidences":[{"source":"UniProtKB","id":"P83223","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues18
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P83223","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues20
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"10581549","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1QO8","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1d4c
ChainResidueDetails
AHIS360
AHIS499
AARG397
AARG539

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1d4c
ChainResidueDetails
DHIS360
DHIS499
DARG397
DARG539

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PDB entries from 2026-04-08

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