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2VCS

Structure of isoniazid (INH) bound to cytosolic soybean ascorbate peroxidase mutant H42A

Functional Information from GO Data
ChainGOidnamespacecontents
A0004601molecular_functionperoxidase activity
A0006979biological_processresponse to oxidative stress
A0016491molecular_functionoxidoreductase activity
A0016688molecular_functionL-ascorbate peroxidase activity
A0020037molecular_functionheme binding
A0034599biological_processcellular response to oxidative stress
A0042744biological_processhydrogen peroxide catabolic process
A0046872molecular_functionmetal ion binding
A0098869biological_processcellular oxidant detoxification
Functional Information from PDB Data
site_idAC1
Number of Residues24
DetailsBINDING SITE FOR RESIDUE HEM A1251
ChainResidue
APRO34
AGLY166
AALA167
AALA168
AHIS169
AARG172
ASER173
ATRP179
ALEU205
ASER207
ATYR235
ATRP41
AISZ1252
AHOH2292
AHOH2293
AHOH2294
AHOH2295
APRO132
AALA134
APHE145
ALEU159
ASER160
AHIS163
AILE165

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE ISZ A1252
ChainResidue
AARG38
ATRP41
AALA70
APRO132
ASER173
AHEM1251
AHOH2098
AHOH2295
AHOH2296

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE ISZ A1253
ChainResidue
ALYS30
ACYS32
AARG79
AARG172
AHOH2293
AHOH2297
AHOH2298

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A1254
ChainResidue
ALYS136
AGLY137
ASER138
AASP139
AHIS140
AHOH2299
AHOH2300

Functional Information from PROSITE/UniProt
site_idPS00435
Number of Residues11
DetailsPEROXIDASE_1 Peroxidases proximal heme-ligand signature. DIVALSGGHTI
ChainResidueDetails
AASP155-ILE165

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1apx
ChainResidueDetails
AARG38
AALA42
AASN71

237735

PDB entries from 2025-06-18

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