Glyceraldehyde-3-phosphate dehydrogenase (NAD(P)+)

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In enzymology, glyceraldehyde-3-phosphate dehydrogenase (NAD(P)+) (EC 1.2.1.59) is an enzyme that catalyzes the chemical reaction

+ NAD+
 
 
Pi
H+
Reversible left-right reaction arrow with minor forward substrate(s) from top left, minor forward product(s) to top right, minor reverse substrate(s) from bottom right and minor reverse product(s) to bottom left
Pi
H+
 
 

The three substrates of this enzyme are D-glyceraldehyde 3-phosphate, phosphate (Pi), and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are 1,3-bisphosphoglyceric acid, reduced NADH, and a proton. The enzyme can use nicotinamide adenine dinucleotide phosphate as an alternative cofactor.[1][2][3]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of a donor with NAD+ or NADP+ as an acceptor. The systematic name of this enzyme class is D-glyceraldehyde 3-phosphate:NAD(P)+ oxidoreductase (phosphorylating). Other names in common use include triosephosphate dehydrogenase (NAD(P)) (phosphorylating), and glyceraldehyde-3-phosphate dehydrogenase (NAD(P)) (phosphorylating).

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 2CZC.

See also

References

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