Plant
Animal
Record Information
Version2.0
StatusDetected and Quantified
Creation Date2021-11-18 02:00:44 UTC
Update Date2025-11-05 17:13:03 UTC
Metabolite IDMMDBc0032065
Metabolite Identification
Common NameRibose-1-arsenate
DescriptionRibose-1-arsenate is a chemical class of arsenic-containing ribonucleoside phosphates. Its chemical structure features a ribose sugar linked to an arsenate group at the 1-position, making it a key intermediate in arsenic metabolism. In biochemical pathways, ribose-1-arsenate is generated through the action of purine nucleoside phosphorylase (PNP), which cleaves inosine in the presence of arsenate (AsV), yielding hypoxanthine and ribose-1-arsenate (PMID:19478237 ). Although PNP is inhibited, ribose-1-arsenate can still be formed and subsequently reduced to arsenite (AsIII) by reducing agents such as dithiothreitol (DTT), indicating its role as a precursor in the reduction pathway of arsenate (PMID:19478237 ). The compound's stability is limited, with a short half-life of approximately 4 minutes, suggesting rapid turnover in biological systems (PMID:19478237 ). Additionally, various thiols have been shown to support the reduction of AsV when ribose-1-arsenate is present, highlighting its involvement in arsenic biochemistry and potential interactions with cellular thiol pools (PMID:19478237 ).
Structure
Synonyms
ValueSource
Ribose-1-arsenic acidGenerator
Molecular FormulaC5H11AsO8
Average Mass274.0576
Monoisotopic Mass273.966988745
IUPAC Name{[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}arsonic acid
Traditional Name[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxyarsonic acid
CAS Registry NumberNot Available
SMILES
OCC1OC(O[As](O)(O)=O)C(O)C1O
InChI Identifier
InChI=1S/C5H11AsO8/c7-1-2-3(8)4(9)5(13-2)14-6(10,11)12/h2-5,7-9H,1H2,(H2,10,11,12)
InChI KeyRYJJOMQPAAUFBF-UHFFFAOYSA-N