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4V2K

Crystal structure of the thiosulfate dehydrogenase TsdA in complex with thiosulfate

Functional Information from GO Data
ChainGOidnamespacecontents
A0009055molecular_functionelectron transfer activity
A0016491molecular_functionoxidoreductase activity
A0020037molecular_functionheme binding
A0042597cellular_componentperiplasmic space
A0046872molecular_functionmetal ion binding
A0050338molecular_functionthiosulfate dehydrogenase activity
Functional Information from PDB Data
site_idAC1
Number of Residues17
DetailsBINDING SITE FOR RESIDUE HEM A 600
ChainResidue
AHIS78
APRO209
ALEU210
APHE216
APHE231
AMET236
APRO237
ALEU238
AHOH2066
APRO81
AARG186
ACYS187
ACYS190
AHIS191
ALEU206
APHE207
APRO208

site_idAC2
Number of Residues24
DetailsBINDING SITE FOR RESIDUE HEM A 601
ChainResidue
ALEU59
AALA75
ACYS76
ACYS79
AHIS80
APHE96
ALEU116
AARG119
ACSS123
APHE124
ASER127
ALEU128
AGLY164
AILE165
AGLU171
ATHR227
ATHJ700
AHOH2070
AHOH2071
AHOH2085
AHOH2086
AHOH2109
AHOH2139
AHOH2202

site_idAC3
Number of Residues11
DetailsBINDING SITE FOR RESIDUE THJ A 700
ChainResidue
AARG109
AARG119
AASP122
ACSS123
AARG126
ASER127
AGLY219
AALA220
AGLY221
AHEC601
AHOH2110

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsBINDING: covalent => ECO:0000255|PROSITE-ProRule:PRU00433
ChainResidueDetails
ACYS76
ACYS79
ACYS187
ACYS190

site_idSWS_FT_FI2
Number of Residues2
DetailsBINDING: axial binding residue => ECO:0000255|PROSITE-ProRule:PRU00433
ChainResidueDetails
AHIS80
AHIS191

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PDB entries from 2025-06-18

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