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... > Enzymes and Coenzymes > Enzymes > Transferases > Glycosyltransferases > Pentosyltransferases > Hypoxanthine Phosphoribosyltransferase

Preferred term

Hypoxanthine Phosphoribosyltransferase  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Guanine Phosphoribosyltransferase
  • HGPRT
  • HPRT
  • HPRTase
  • Hypoxanthine Guanine Phosphoribosyltransferase
  • Hypoxanthine-Guanine Phosphoribosyltransferase
  • IMP Pyrophosphorylase
  • Phosphoribosyltransferase, Guanine
  • Phosphoribosyltransferase, Hypoxanthine-Guanine
  • Pyrophosphorylase, IMP

Note

  • /defic: consider also LESCH-NYHAN SYNDROME or GOUT

Scope note

  • An enzyme that catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanine, or MERCAPTOPURINE to the corresponding 5'-mononucleotides and pyrophosphate. The enzyme is important in purine biosynthesis as well as central nervous system functions. Complete lack of enzyme activity is associated with the LESCH-NYHAN SYNDROME, while partial deficiency results in overproduction of uric acid. EC 2.4.2.8.

History note

  • 75; GUANINE PHOSPHORIBOSYLTRANSFERASE was GUANINE PHOSPHORIBOSYLTRANSFERASE (NM) 1978-91

URI

http://www.yso.fi/onto/mesh/D007041

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