2-Phosphoglycolate

2-Phosphoglycolate
Names
IUPAC name
2-phosphonatooxyacetate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.032.789 Edit this at Wikidata
EC Number
  • acid: 236-084-2
UNII
  • InChI=1S/C2H5O6P/c3-2(4)1-8-9(5,6)7/h1H2,(H,3,4)(H2,5,6,7)/p-3
    Key: ASCFNMCAHFUBCO-UHFFFAOYSA-K
  • acid: InChI=1S/C2H5O6P/c3-2(4)1-8-9(5,6)7/h1H2,(H,3,4)(H2,5,6,7)
    Key: ASCFNMCAHFUBCO-UHFFFAOYSA-N
  • C(C(=O)[O-])OP(=O)([O-])[O-]
  • acid: C(C(=O)O)OP(=O)(O)O
Properties
C2H2O6P−3
Molar mass 153.007 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

2-Phosphoglycolate (chemical formula C2H2O6P3-; also known as phosphoglycolate, 2-PG, or PG) is a natural metabolic product of the oxygenase reaction mediated by the enzyme ribulose 1,5-bisphosphate carboxylase (RuBisCo).

Photorespiration serves as a salvage pathway that converts 2-PG into non-toxic metabolites. Contrary to the Calvin cycle, this pathway is responsible a net loss of previously fixed carbon. It also serves as sink for ATP and NADH.