hypoxanthine phosphoribosyltransferase

Also found in: Acronyms.

hy·po·xan·thine phos·pho·ri·bo·syl·trans·fer·ase

an enzyme present in human tissue that catalyzes the conversion of hypoxanthine and guanine to their respective 5' nucleotides, with 5-phosphoribose 1-diphosphate as the ribose-phosphate donor; a partial deficiency of this enzyme can result in elevated purine biosynthesis leading to gout; another level of deficiency is associated with Lesch-Nyhan syndrome.
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8] Human genes: HPRT1, hypoxanthine phosphoribosyltransferase 1; HPRT1, hypoxanthine phosphori bosyltransferase 1; RPLPO, ribosomal protein, large, PO; ERBB2, v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; AR, androgen receptor; ERBB4, v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 4.
4] Human genes: RPLPO, ribosomal protein, large, P0; PPIA, peptidylprolyl isomerase A (cyclophilin A); TNFRSF1A, tumor necrosis factor receptor superfamily, member 1A; CCL11, CCL17, CCL19, CCL22, CCL3, CCL4, chemokine (C-C motif) ligand 11, 17, 19, 22, 3, and 4; CL5 chemokine (C-C motif) ligand 5; CCR1, CCR7, CCR8, chemokine (C-C motif) receptor 1, 7, and 8; CD86, CD86 molecule; CXCL12, chemokine (C-X-C motif) ligand 12 (stromal cell-derived factor 1); CXCL2, chemokine (C-X-C motif) ligand 2; CXCR4, chemokine (C-X-C motif) receptor 4; L128, interleukin 12B (natural killer cell-stimulating factor 2, cytotoxic lymphocyte maturation factor 2, p40); IL15, IL4, IL8, interleukin 15, 4, and 8; HPRT1, hypoxanthine phosphoribosyltransferase 1; PGK1, phosphoglycerate kinase 1.
3008 by analysis of variance), and similar results were obtained for two other commonly used human housekeeping genes, the transferrin receptor (p90, CD71) (TFRC) and hypoxanthine phosphoribosyltransferase 1 (HPRT1), except that TFRC levels in [iAs.
Concentrations of the target genes, expressed relative to our housekeeping set [low-abundance housekeeping gene hydroxymethylbilane synthase (HMBS, formerly porphobilinogen deaminase, PBGD), medium-abundance hypoxanthine phosphoribosyltransferase (HPRT), and highabundance [[beta].
2]-microglobulin (B2M), glucose-6-phosphate dehydrogenase (G6PD), hypoxanthine phosphoribosyltransferase 1 (HPRT1), and hydroxymethylbilane synthase (HMBS; formerly PBGD, porphobilinogen deaminase), as potential references for relative quantification.
5] Human genes: TERT, telomerase reverse transcriptase (Homo sapiens); HPRT, hypoxanthine phosphoribosyltransferase.
TPMT catalyzes the conversion of thiopurines to nontoxic or less toxic methylated compounds, as opposed to their metabolic activation by hypoxanthine phosphoribosyltransferase (EC 2.