Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-17 23:52:57 UTC
Update Date2022-08-31 17:39:31 UTC
Metabolite IDMMDBc0030075
Metabolite Identification
Common NameL-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-Phosphono-L-erythro-pent-2-uloseChEBI
5-O-Phosphono-L-ribuloseChEBI
L-Ribulose 5-phosphoric acidGenerator
Ribulose 5-phosphateMeSH
Ribulose 5-phosphate, (D)-isomerMeSH
Ribulose 5-phosphate, (L)-isomerMeSH
Molecular FormulaC5H11O8P
Average Mass230.1098
Monoisotopic Mass230.01915384
IUPAC Name{[(2S,3S)-2,3,5-trihydroxy-4-oxopentyl]oxy}phosphonic acid
Traditional NameL-ribulose 5-phosphate
CAS Registry Number2922-69-2
SMILES
[H][C@](O)(COP(O)(O)=O)[C@]([H])(O)C(=O)CO
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)/t4-,5+/m0/s1
InChI KeyFNZLKVNUWIIPSJ-CRCLSJGQSA-N