Kojibiose phosphorylase

Kojibiose phosphorylase
Identifiers
EC number	2.4.1.230
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

In enzymology, a kojibiose phosphorylase (EC 2.4.1.230) is an enzyme that catalyzes the chemical reaction

2-alpha-D-glucosyl-D-glucose + phosphate $\rightleftharpoons$ D-glucose + beta-D-glucose 1-phosphate

Thus, the two substrates of this enzyme are 2-alpha-D-glucosyl-D-glucose (kojibiose) 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 2-alpha-D-glucosyl-D-glucose:phosphate beta-D-glucosyltransferase.

References

• Sugimoto T, Kurimoto M and Tsujisaka Y (1999). "Purification and characterization of a novel phosphorylase, kojibiose phosphorylase, from Thermoanaerobium brockii". J. Appl. Glycosci. 46: 423–429.
• Chaen H, Nishimoto T, Nakada T, Fukuda S, Kurimoto M, Tsujisaka Y (2001). "Enzymatic synthesis of kojioligosaccharides using kojibiose phosphorylase". J. Biosci. Bioeng. 92 (2): 177–82. doi:10.1263/jbb.92.177. PMID 16233080.