ID Q6LDG5_RAT Unreviewed; 160 AA.
AC Q6LDG5;
DT 05-JUL-2004, integrated into UniProtKB/TrEMBL.
DT 05-JUL-2004, sequence version 1.
DT 27-MAR-2024, entry version 95.
DE RecName: Full=Hypoxanthine phosphoribosyltransferase {ECO:0000256|RuleBase:RU364099};
DE EC=2.4.2.8 {ECO:0000256|RuleBase:RU364099};
DE Flags: Fragment;
OS Rattus norvegicus (Rat).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC Murinae; Rattus.
OX NCBI_TaxID=10116 {ECO:0000313|EMBL:AAA41351.1};
RN [1] {ECO:0000313|EMBL:AAA41351.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Sprague-Dawley {ECO:0000313|EMBL:AAA41351.1};
RC TISSUE=Testis {ECO:0000313|EMBL:AAA41351.1};
RA Lu Q.-X., Porter L.D., Sanborn B.M.;
RL Submitted (APR-1992) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Converts guanine to guanosine monophosphate, and hypoxanthine
CC to inosine monophosphate. Transfers the 5-phosphoribosyl group from 5-
CC phosphoribosylpyrophosphate onto the purine. Plays a central role in
CC the generation of purine nucleotides through the purine salvage
CC pathway. {ECO:0000256|ARBA:ARBA00025301}.
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:0000256|RuleBase:RU364099};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946,
CC ECO:0000256|RuleBase:RU364099};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via salvage pathway; IMP
CC from hypoxanthine: step 1/1. {ECO:0000256|ARBA:ARBA00004669,
CC ECO:0000256|RuleBase:RU364099}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|ARBA:ARBA00011881}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|RuleBase:RU364099}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. {ECO:0000256|ARBA:ARBA00008391, ECO:0000256|RuleBase:RU364099}.
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DR EMBL; M86443; AAA41351.1; -; mRNA.
DR AlphaFoldDB; Q6LDG5; -.
DR UniPathway; UPA00591; UER00648.
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: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; HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR43340:SF6; HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
PE 2: Evidence at transcript level;
KW Cytoplasm {ECO:0000256|RuleBase:RU364099};
KW Glycosyltransferase {ECO:0000256|RuleBase:RU364099};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU364099};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU364099};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU364099};
KW Purine salvage {ECO:0000256|RuleBase:RU364099};
KW Transferase {ECO:0000256|RuleBase:RU364099, ECO:0000313|EMBL:AAA41351.1}.
FT DOMAIN 3..137
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:AAA41351.1"
SQ SEQUENCE 160 AA; 17884 MW; 22F7A05CFD51A157 CRC64;
GHHIVALCVL KGGYKFFADL LDYIKALNRN SDRSIPMTVD FIRLKSYCND QSTGDIKVIG
GDDLSTLTGK NVLIVEDIID TGKTMQTLLS LVKQYSPKMV KVASLLVKRT SRSVGYRPDF
VGFEIPDKFV VGYALDYNEH FRDLNHVCVI SESGKAKYKA
//
