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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
A0005506molecular_functioniron ion binding
A0006979biological_processresponse to oxidative stress
A0016174molecular_functionNAD(P)H oxidase H2O2-forming activity
A0020037molecular_functionheme binding
A0034599biological_processcellular response to oxidative stress
A0098869biological_processcellular oxidant detoxification
Functional Information from PDB Data
site_idAC1
Number of Residues24
DetailsBINDING SITE FOR RESIDUE HEM A 1251
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 A 1252
ChainResidue
AARG38
ATRP41
AALA70
APRO132
ASER173
AHEM1251
AHOH2098
AHOH2295
AHOH2296

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE ISZ A 1253
ChainResidue
ALYS30
ACYS32
AARG79
AARG172
AHOH2293
AHOH2297
AHOH2298

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A 1254
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

261139

PDB entries from 2026-10-21

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