Maltose phosphorylase
maltose phosphorylase | |||||||||
---|---|---|---|---|---|---|---|---|---|
Identifiers | |||||||||
EC no. | 2.4.1.8 | ||||||||
CAS no. | 9030-19-7 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
|
In enzymology, a maltose phosphorylase (EC 2.4.1.8) is an enzyme that catalyzes the chemical reaction
- maltose + phosphate D-glucose + beta-D-glucose 1-phosphate
Thus, the two substrates of this enzyme are maltose and phosphate, whereas its two products are D-glucose and beta-D-glucose 1-phosphate.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is maltose:phosphate 1-beta-D-glucosyltransferase. This enzyme participates in .
Structural studies[]
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1H54.
References[]
- Boyer, P.D., Lardy, H. and Myrback, K. (Eds.), The Enzymes, 2nd ed., vol. 5, Academic Press, New York, 1961, p. 229-236.
- FITTING C, DOUDOROFF M (1952). "Phosphorolysis of maltose by enzyme preparations from Neisseria meningitidis". J. Biol. Chem. 199 (1): 153–63. PMID 12999827.
- Putman EW, Litt CF, Hassid WZ (1955). "The structure of D-glucose-D-xylose synthesized by maltose phosphorylase". J. Am. Chem. Soc. 77 (16): 4351–4353. doi:10.1021/ja01621a050.
- Wood BJ, Rainbow C (1961). "The maltophosphorylase of beer lactobacilli". Biochem. J. 78: 204–209. PMC 1205197. PMID 13786484.
Categories:
- EC 2.4.1
- Enzymes of known structure
- EC 2.4 stubs