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2X30

Crystal structure of the r139n mutant of a bifunctional enzyme pria

Functional Information from GO Data
ChainGOidnamespacecontents
A0000105biological_processL-histidine biosynthetic process
A0000162biological_processL-tryptophan biosynthetic process
A0003949molecular_function1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino]imidazole-4-carboxamide isomerase activity
A0004640molecular_functionphosphoribosylanthranilate isomerase activity
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
Functional Information from PDB Data
site_idAC1
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SO4 A 1241
ChainResidue
AALA57
AHOH2124
AGLY82
AGLY83
AARG85
AGLY104
ATHR105
AASN139
AHOH2122
AHOH2123

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 1242
ChainResidue
AGLY197
AGLY198
AGLY222
ALYS223
AHOH2125

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

253795

PDB entries from 2026-05-20

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