Acronym for Phosphoglyceraldehyde, a chemical compound that serves as an intermediate in several central metabolic pathways in all organisms.
This compound is an intermediate of photosynthesis and of glycolysis and gluconeogenesis.
It also is a byproduct in the biosynthesis pathway of tryptophan, an essential amino acid. It also occurs as a reactant in the biosynthesis pathway of thiamine (Vitamin B1), another substance that cannot be produced by the human body.
Synonym: glyceraldehyde 3-phosphate (G3P or GAP), triose phosphate, 3-phosphoglyceraldehyde (GADP).
See also: glycolysis.