1,3-Bisphosphoglyceric acid

Bisphosphoglyceric acid
1,3-Bisphosphoglyceric acid molecule
Names
IUPAC name
(2-Hydroxy-3-phosphonooxy-propanoyloxy)phosphonic acid
Other names
1,3-Diphosphoglycerate; Glycerate-1,3-bisphosphate; Glycerate-1,3-biphosphate; 1,3-Biphosphoglycerate; 3-Phosphoglyceroyl phosphate; Glyceric acid-1,3-diphosphate
Identifiers
3D model (JSmol)
Abbreviations 1,3BPG; 1,3-BPG; PGAP
ChemSpider
  • InChI=1S/C3H8O10P2/c4-2(1-12-14(6,7)8)3(5)13-15(9,10)11/h2,4H,1H2,(H2,6,7,8)(H2,9,10,11) checkY
    Key: LJQLQCAXBUHEAZ-UHFFFAOYSA-N checkY
  • InChI=1/C3H8O10P2/c4-2(1-12-14(6,7)8)3(5)13-15(9,10)11/h2,4H,1H2,(H2,6,7,8)(H2,9,10,11)
    Key: LJQLQCAXBUHEAZ-UHFFFAOYAI
  • O=C(OP(=O)(O)O)C(O)COP(=O)(O)O
Properties
C3H8O10P2
Molar mass 266.035 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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1,3-Bisphosphoglyceric acid (1,3-Bisphosphoglycerate or 1,3BPG) is a 3-carbon organic molecule present in most, if not all, living organisms. It primarily exists as a metabolic intermediate in both glycolysis during respiration and the Calvin cycle during photosynthesis. 1,3BPG is a transitional stage between glycerate 3-phosphate and glyceraldehyde 3-phosphate during the fixation/reduction of CO2. 1,3BPG is also a precursor to 2,3-bisphosphoglycerate which in turn is a reaction intermediate in the glycolytic pathway.