Ribose 5-phosphate

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Ribose 5-phosphate
IUPAC name	(2,3,4-Trihydroxy-5-oxo-pentoxy)phosphonic acid
Identifiers
CAS number	[3615-55-2]
PubChem	230
MeSH	ribose-5-phosphate
SMILES	C(C(C(C(C=O)O)O)O)OP(=O)(O)O
Properties
Molecular formula	C5H11O8P
Molar mass	230.110
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Ribose 5-phosphate is both a product and an intermediate of the pentose phosphate pathway. The last step of the oxidative reactions in the pentose phosphate pathway is the production of ribulose-5-phosphate. Depending on the body's state, ribulose-5-phosphate can reversibly isomerize to ribose-5-phosphate. Ribulose-5-phosphate can alternatively undergo a series of isomerizations that result in the production of fructose-6-phosphate and glyceraldehyde-3-phosphate (both intermediates in glycolysis).

The enzyme ribose-phosphate diphosphokinase converts ribose-5-phosphate into phosphoribosyl pyrophosphate.