6-phospho-β-galactosidase
| 6-phospho-beta-galactosidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 3.2.1.85 | ||||||||
| CAS no. | 37237-42-6 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
A 6-phospho-beta-galactosidase (EC 3.2.1.85) is an enzyme that catalyzes this chemical reaction:
- a 6-phospho-beta-D-galactoside + H2O 6-phospho-D-galactose + an alcohol
Thus, the two substrates of this enzyme are 6-phospho-beta-D-galactoside and H2O, whereas its two products are 6-phospho-D-galactose and alcohol.
This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is 6-phospho-beta-D-galactoside 6-phosphogalactohydrolase. Other names in common use include phospho-beta-galactosidase, beta-D-phosphogalactoside galactohydrolase, phospho-beta-D-galactosidase, and 6-phospho-beta-D-galactosidase. This enzyme participates in galactose metabolism.
Structural studies
As of 2007[update], four structures have been solved for this class of enzymes, with PDB accession codes 1PBG, 2PBG, 3PBG, and 4PBG.
References
- Hengstenberg W, Penberthy WK, Morse ML (1970). "Purification of the staphylococcal 6-phospho-beta-D-- galactosidase". Eur. J. Biochem. 14 (1): 27–32. doi:10.1111/j.1432-1033.1970.tb00256.x. PMID 5447434.
