Kojibiose phosphorylase

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

2-alpha-D-glucosyl-D-glucose + phosphate D-glucose + beta-D-glucose 1-phosphate

Thus, the two substrates of this enzyme are 2-alpha-D-glucosyl-D-glucose 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.


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  • 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&ndash, 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: 177&ndash, 82. PMID 16233080.

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