hypoxanthine

Hypoxanthine (Purin-6-ol), also known as purine-6-ol or Hyp. Hypoxanthine is a naturally occurring purine derivative and a reaction intermediate in the metabolism of adenosine and in the formation of nucleic acids by the nucleotide salvage pathway. Under normal circumstances hypoxanthine is readily converted to uric acid.hypoxanthine is first oxidized to xanthine, which is further oxidized to uric acid by xanthine oxidase.

Inosine (NSC-20262) is a purine nucleoside that has hypoxanthine linked by the N9 nitrogen to the C1 carbon of ribose. It has immunomodulatory, neuroprotective, and analgesic properties.

Inosine 5'-monophosphate disodium salt hydrate (Inosine 5'-monophosphate disodium salt), or inosinic acid, is the ribonucleotide of hypoxanthine and the first nucleotide formed during purine synthesis.

Inosinic acid (IMP) is a purine nucleotide which has hypoxanthine as the base and one phosphate group esterified to the sugar moiety. Inosinic acid is a nucleotide present in muscle and other tissues. It is formed by the deamination of AMP and when hydrolysed produces inosine. Inosinic acid is the ribonucleotide of hypoxanthine and is the first compound formed during the synthesis of purine.Inosine 5′-monophosphate (IMP) is used as a substrate to study the distribution, specificity and kinetics of inosine-5′-monophosphate dehydrogenase (IMPDH).

Phosphoribosyl pyrophosphate pentasodium is the sodium salt form of PRPP. PRPP is a phosphoribosyl donor for AMP and GMP synthesis in reactions catalysed by adenine phosphoribosyltransferase and hypoxanthine guanine phosphoribosyltransferase. PRPP is synthesized from ribose-5-phosphate and ATP by PRPP synthetase (EC 2.7.6.1).

1. Lucidin (NSC-30546) and its derivatives are genotoxic, it is mutagenic at the hypoxanthine-guanine phosphoribosyl transferase gene locus.