Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-18 02:03:07 UTC
Update Date2022-08-31 18:30:41 UTC
Metabolite IDMMDBc0032117
Metabolite Identification
Common Name L-ribulose 5-phosphate
DescriptionL-Ribulose 5-phosphate is a member of the chemical class known as Pentoses. These are monosaccharides in which the carbohydrate moiety contains five carbon atoms. In Escherichia coli, RpiA catalyzes the interconversion of ribose-5-phosphate and ribulose-5-phosphate and is a key enzyme in the pentose phosphate pathway. (PMID 12182339 ) Interconversion of D-ribose-5-phosphate (R5P) and D-ribulose-5-phosphate is an important step in the pentose phosphate pathway. (PMID 18640127 ) A key player in LPS synthesis is the enzyme D-arabinose-5-phosphate isomerase (API), which catalyzes the reversible isomerization of D-ribulose-5-phosphate to D-arabinose-5-phosphate, a precursor of 3-deoxy-D-manno-octulosonate that is an essential residue of the LPS inner core. (PMID 20954237 ) Dihydroxybutanone phosphate synthase (DS) catalyzes a commitment step in riboflavin biosynthesis where ribulose 5-phosphate is converted to dihydroxybutanone phosphate and formate. (PMID 11053863 ) Ribose-5-phosphate isomerase A (RpiA) plays an important role in interconverting between ribose-5-phosphate (R5P) and ribulose-5-phosphate in the pentose phosphate pathway and the Calvin cycle. (PMID 19214439 )
Structure
Synonyms
ValueSource
5-O-Phosphonato-L-erythro-pent-2-uloseChEBI
5-O-Phosphonato-L-ribuloseChEBI
L-Ribulose 5-phosphateChEBI
L-Ribulose 5-phosphate dianionChEBI
L-Ribulose 5-phosphoric acidGenerator
L-Ribulose 5-phosphoric acid dianionGenerator
L-Ribulose 5-phosphoric acidGenerator
Molecular FormulaC5H9O8P
Average Mass228.094
Monoisotopic Mass228.004601408
IUPAC Name(3S,4S)-1,3,4-trihydroxy-5-(phosphonatooxy)pentan-2-one
Traditional NameL-ribulose 5-phosphate(2-)
CAS Registry NumberNot Available
SMILES
OCC(=O)[C@@H](O)[C@@H](O)COP([O-])([O-])=O
InChI Identifier
InChI=1S/C5H11O8P/c6-1-3(7)5(9)4(8)2-13-14(10,11)12/h4-6,8-9H,1-2H2,(H2,10,11,12)/p-2/t4-,5+/m0/s1
InChI KeyFNZLKVNUWIIPSJ-CRCLSJGQSA-L