ID HGPRT_MYCTO Reviewed; 202 AA. AC P9WHQ8; L0TER1; O06383; P0A5T0; P96906; DT 16-APR-2014, integrated into UniProtKB/Swiss-Prot. DT 16-APR-2014, sequence version 1. DT 24-JAN-2024, entry version 42. DE RecName: Full=Hypoxanthine-guanine phosphoribosyltransferase; DE Short=HGPRT; DE Short=HGPRTase; DE EC=2.4.2.8 {ECO:0000250|UniProtKB:P9WHQ9}; GN Name=hpt; Synonyms=hprT; OrderedLocusNames=MT3726; OS Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh). OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae; OC Mycobacterium; Mycobacterium tuberculosis complex. OX NCBI_TaxID=83331; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=CDC 1551 / Oshkosh; RX PubMed=12218036; DOI=10.1128/jb.184.19.5479-5490.2002; RA Fleischmann R.D., Alland D., Eisen J.A., Carpenter L., White O., RA Peterson J.D., DeBoy R.T., Dodson R.J., Gwinn M.L., Haft D.H., Hickey E.K., RA Kolonay J.F., Nelson W.C., Umayam L.A., Ermolaeva M.D., Salzberg S.L., RA Delcher A., Utterback T.R., Weidman J.F., Khouri H.M., Gill J., Mikula A., RA Bishai W., Jacobs W.R. Jr., Venter J.C., Fraser C.M.; RT "Whole-genome comparison of Mycobacterium tuberculosis clinical and RT laboratory strains."; RL J. Bacteriol. 184:5479-5490(2002). CC -!- FUNCTION: Purine salvage pathway enzyme that catalyzes the transfer of CC the ribosyl-5-phosphate group from 5-phospho-alpha-D-ribose 1- CC diphosphate (PRPP) to the N9 position of the 6-oxopurines hypoxanthine CC and guanine to form the corresponding ribonucleotides IMP (inosine 5'- CC monophosphate) and GMP (guanosine 5'-monophosphate), with the release CC of PPi. {ECO:0000250|UniProtKB:P9WHQ9}. CC -!- CATALYTIC ACTIVITY: CC Reaction=diphosphate + IMP = 5-phospho-alpha-D-ribose 1-diphosphate + CC hypoxanthine; Xref=Rhea:RHEA:17973, ChEBI:CHEBI:17368, CC ChEBI:CHEBI:33019, ChEBI:CHEBI:58017, ChEBI:CHEBI:58053; EC=2.4.2.8; CC Evidence={ECO:0000250|UniProtKB:P9WHQ9}; CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:17975; CC Evidence={ECO:0000250|UniProtKB:P9WHQ9}; CC -!- CATALYTIC ACTIVITY: CC Reaction=diphosphate + GMP = 5-phospho-alpha-D-ribose 1-diphosphate + CC guanine; Xref=Rhea:RHEA:25424, ChEBI:CHEBI:16235, ChEBI:CHEBI:33019, CC ChEBI:CHEBI:58017, ChEBI:CHEBI:58115; EC=2.4.2.8; CC Evidence={ECO:0000250|UniProtKB:P9WHQ9}; CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:25426; CC Evidence={ECO:0000250|UniProtKB:P9WHQ9}; CC -!- COFACTOR: CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; CC Evidence={ECO:0000250|UniProtKB:P9WHQ9}; CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via salvage pathway; IMP CC from hypoxanthine: step 1/1. {ECO:0000250|UniProtKB:P9WHQ9}. CC -!- PATHWAY: Purine metabolism; GMP biosynthesis via salvage pathway; GMP CC from guanine: step 1/1. {ECO:0000250|UniProtKB:P9WHQ9}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}. CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase CC family. {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AE000516; AAK48087.1; -; Genomic_DNA. DR PIR; A70561; A70561. DR AlphaFoldDB; P9WHQ8; -. DR SMR; P9WHQ8; -. DR KEGG; mtc:MT3726; -. DR HOGENOM; CLU_073615_0_0_11; -. DR UniPathway; UPA00591; UER00648. DR UniPathway; UPA00909; UER00887. DR Proteomes; UP000001020; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell. DR GO; GO:0052657; F:guanine phosphoribosyltransferase activity; IEA:UniProtKB-EC. DR GO; GO:0004422; F:hypoxanthine phosphoribosyltransferase activity; IEA:UniProtKB-EC. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW. DR GO; GO:0032263; P:GMP salvage; IEA:UniProtKB-UniPathway. DR GO; GO:0032264; P:IMP salvage; IEA:UniProtKB-UniPathway. DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW. DR CDD; cd06223; PRTases_typeI; 1. DR Gene3D; 3.40.50.2020; -; 1. DR InterPro; IPR005904; Hxn_phspho_trans. DR InterPro; IPR000836; PRibTrfase_dom. DR InterPro; IPR029057; PRTase-like. DR NCBIfam; TIGR01203; HGPRTase; 1. DR PANTHER; PTHR43340:SF1; HYPOXANTHINE PHOSPHORIBOSYLTRANSFERASE; 1. DR PANTHER; PTHR43340; HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE; 1. DR Pfam; PF00156; Pribosyltran; 1. DR SUPFAM; SSF53271; PRTase-like; 1. DR PROSITE; PS00103; PUR_PYR_PR_TRANSFER; 1. PE 3: Inferred from homology; KW Cytoplasm; Glycosyltransferase; Magnesium; Metal-binding; KW Nucleotide-binding; Purine salvage; Reference proteome; Transferase. FT CHAIN 1..202 FT /note="Hypoxanthine-guanine phosphoribosyltransferase" FT /id="PRO_0000428140" FT ACT_SITE 126 FT /note="Proton acceptor" FT /evidence="ECO:0000250|UniProtKB:P0A9M2" FT BINDING 66 FT /ligand="diphosphate" FT /ligand_id="ChEBI:CHEBI:33019" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 67 FT /ligand="diphosphate" FT /ligand_id="ChEBI:CHEBI:33019" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 122 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 123 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 154 FT /ligand="GMP" FT /ligand_id="ChEBI:CHEBI:58115" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 175..176 FT /ligand="GMP" FT /ligand_id="ChEBI:CHEBI:58115" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 182 FT /ligand="GMP" FT /ligand_id="ChEBI:CHEBI:58115" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" FT BINDING 188 FT /ligand="diphosphate" FT /ligand_id="ChEBI:CHEBI:33019" FT /evidence="ECO:0000250|UniProtKB:P9WHQ9" SQ SEQUENCE 202 AA; 22269 MW; 7CDD6816798873E1 CRC64; MHVTQSSSAI TPGQTAELYP GDIKSVLLTA EQIQARIAEL GEQIGNDYRE LSATTGQDLL MITVLKGAVL FVTDLARAIP VPTQFEFMAV SSYGSSTSSS GVVRILKDLD RDIHGRDVLI VEDVVDSGLT LSWLSRNLTS RNPRSLRVCT LLRKPDAVHA NVEIAYVGFD IPNDFVVGYG LDYDERYRDL SYIGTLDPRV YQ //