Ribose 5-phosphate

Ribose 5-phosphate
IUPAC name (2,3,4-Trihydroxy-5-oxo-pentoxy)phosphonic acid
Identifiers
CAS number	4300-28-1 N
PubChem	77982
ChemSpider	70368 N
MeSH	ribose-5-phosphate
ChEBI	CHEBI:58273 Y
Jmol-3D images	{{#if:C([C@H]([C@H]([C@H](C=O)O)O)O)OP(=O)(O)O|Image 1
SMILES C([C@H]([C@H]([C@H](C=O)O)O)O)OP(=O)(O)O
InChI InChI=1S/C5H11O8P/c6-1-3(7)5(9)4(8)2-13-14(10,11)12/h1,3-5,7-9H,2H2,(H2,10,11,12)/t3-,4+,5-/m0/s1 N Key: PPQRONHOSHZGFQ-LMVFSUKVSA-N N InChI=1/C5H11O8P/c6-1-3(7)5(9)4(8)2-13-14(10,11)12/h1,3-5,7-9H,2H2,(H2,10,11,12)/t3-,4+,5-/m0/s1 Key: PPQRONHOSHZGFQ-LMVFSUKVBC
Properties
Molecular formula	C5H11O8P
Molar mass	230.110
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox 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 as well as transaldolations and transketolations that result in the production of other pentoses phosphates as well as fructose 6-phosphate and glyceraldehyde 3-phosphate (both intermediates in glycolysis).

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