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3SZW

Crystal structure of sulfide:quinone oxidoreductase Cys128Ser variant from Acidithiobacillus ferrooxidans in complex with decylubiquinone

Functional Information from GO Data
ChainGOidnamespacecontents
A0003955molecular_functionNAD(P)H dehydrogenase (quinone) activity
A0016020cellular_componentmembrane
A0016491molecular_functionoxidoreductase activity
A0019646biological_processaerobic electron transport chain
A0070224molecular_functionsulfide:quinone oxidoreductase activity
Functional Information from PDB Data
site_idAC1
Number of Residues42
DetailsBINDING SITE FOR RESIDUE FAD A 500
ChainResidue
ALEU7
APRO43
ASER77
AALA78
AALA104
ATHR105
AGLY106
APRO107
AILE127
ASER128
APRO163
AGLY8
AVAL267
AGLY301
AILE302
ATHR321
AGLY322
AILE325
AVAL355
ACYS356
APHE357
ALYS391
AALA9
ADCQ502
AH2S506
AHOH601
AHOH602
AHOH609
AHOH610
AHOH654
AHOH660
AHOH702
AHOH716
AGLY10
AHOH718
AHOH740
AHOH776
ATHR11
AGLY12
ASER34
AALA35
AVAL42

site_idAC2
Number of Residues16
DetailsBINDING SITE FOR RESIDUE LMT A 501
ChainResidue
AGLY205
AASP206
AILE210
AGLU217
ACYS356
AALA358
AALA365
ATYR383
AHOH622
AHOH650
AHOH710
AHOH719
AHOH738
AHOH742
AHOH753
AHOH779

site_idAC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE DCQ A 502
ChainResidue
APHE41
APRO43
AGLY322
ATYR323
AVAL355
APHE357
ALYS391
APHE394
ATYR411
ALYS417
AFAD500
AHOH860

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 503
ChainResidue
AMET-2
AHIS3
AHIS97
AHOH687

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE H2S A 504
ChainResidue
ASER126
AILE127
ASER128
AILE261
APRO262

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE H2S A 505
ChainResidue
APHE161
AGLY162
ACYS356
AH2S506
AHOH887

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE H2S A 506
ChainResidue
ATHR321
AVAL355
ACYS356
AFAD500
AH2S505

site_idAC8
Number of Residues1
DetailsBINDING SITE FOR RESIDUE H2S A 507
ChainResidue
ACYS160

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Cysteine persulfide intermediate","evidences":[{"source":"PubMed","id":"20303979","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"22542586","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues9
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"20303979","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"22542586","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

251174

PDB entries from 2026-03-25

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