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- ********************************************************
- * Glyceraldehyde 3-phosphate dehydrogenase active site *
- ********************************************************
-
- Glyceraldehyde 3-phosphate dehydrogenase (EC 1.2.1.12) (GAPDH) [1] is a
- tetrameric NAD-binding enzyme common to both the glycolytic and gluconeogenic
- pathways. A cysteine in the middle of the molecule is involved in forming a
- covalent phosphoglycerol thioester intermediate. The sequence around this
- cysteine is totally conserved in eubacterial and eukaryotic GAPDHs and is
- also present, albeit in a variant form, in the otherwise highly divergent
- archaebacterial GAPDH [2].
-
- -Consensus pattern: [ASV]-S-C-[NT]-T-x(2)-[LIM]
- [C is the active site residue]
- -Sequences known to belong to this class detected by the pattern: ALL, except
- for Bacillus megaterium GAPDH which has Pro instead of Ser in position 2 of
- the pattern.
- -Other sequence(s) detected in SWISS-PROT: Saccharopolyspora erythraea eryA,
- chicken TGF beta-3 and Streptomyces cacaoi beta-lactamase regulatory protein
- blaA.
- -Last update: June 1994 / Text revised.
-
- [ 1] Harris J.I., Waters M.
- (In) The Enzymes (3rd edition) 13:1-50(1976).
- [ 2] Fabry S., Lang J., Niermann T., Vingron M., Hensel R.
- Eur. J. Biochem. 179:405-413(1989).
-