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1QO2

Crystal structure of N-((5'-phosphoribosyl)-formimino)-5-aminoimidazol-4-carboxamid ribonucleotid isomerase (EC 3.1.3.15, HisA)

Functional Information from GO Data
ChainGOidnamespacecontents
A0000105biological_processL-histidine biosynthetic process
A0003949molecular_function1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino]imidazole-4-carboxamide isomerase activity
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0008652biological_processamino acid biosynthetic process
A0016853molecular_functionisomerase activity
B0000105biological_processL-histidine biosynthetic process
B0003949molecular_function1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino]imidazole-4-carboxamide isomerase activity
B0005737cellular_componentcytoplasm
B0005829cellular_componentcytosol
B0008652biological_processamino acid biosynthetic process
B0016853molecular_functionisomerase activity
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"12356303","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"PubMed","id":"12356303","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

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PDB entries from 2025-08-06

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