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3-Phosphoglyceric acid: Wikis

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3-Phosphoglyceric acid
Identifiers
CAS number 820-11-1
PubChem 439183
SMILES
Properties
Molecular formula C3H7O7P
Molar mass 186.06 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

3-Phosphoglyceric acid (3PG), or glycerate 3-phosphate (GP), is a biochemically significant 3-carbon molecule that is a metabolic intermediate in both glycolysis and the Calvin cycle.[citation needed] This chemical is often termed PGA when referring to the Calvin cycle. 3-Phosphoglycerate is the resultant of the split of 6-carbon intermediate that is so unstable that it splits instantly. And two 3-phosphoglycerate molecules are produced for each molecule of CO2.

Contents

Glycolysis

1,3-bisphospho-D-glycerate 3-phosphoglycerate kinase 3-phospho-D-glycerate Phosphoglyceromutase 2-phospho-D-glycerate
1,3-bisphospho-D-glycerate wpmp.png   3-phospho-D-glycerate wpmp.png   2-phospho-D-glycerate wpmp.png
ADP ATP
Biochem reaction arrow reversible YYYY horiz med.png Biochem reaction arrow reversible NNNN horiz med.png
ADP ATP
   
  3-phosphoglycerate kinase   Phosphoglyceromutase

Compound C00236 at KEGG Pathway Database. Enzyme 2.7.2.3 at KEGG Pathway Database. Compound C00197 at KEGG Pathway Database. Enzyme 5.4.2.1 at KEGG Pathway Database. Compound C00631 at KEGG Pathway Database.

Calvin cycle

In the Calvin cycle, two glycerate 3-phosphate molecules are reduced to form two molecules of glyceraldehyde 3-phosphate (PGAL). This is the first compound formed during the C3 or Calvin cycle. It is a reactive biomolecule that is easily reduced.

Amino acid synthesis

Glycerate 3-phosphate is also a precursor for serine, which, in turn, can create cysteine and glycine through the homocysteine cycle.

See also

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