Cellobiose phosphorylase () is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme are cellobiose and phosphate (Pi). Its products are α-D-glucose-1-phosphate and D-glucose. The enzyme has been characterised from the bacteria Ruminococcus flavefaciens and Clostridium thermocellum.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is cellobiose:phosphate alpha-D-glucosyltransferase.
Structural studies As of late 2006, two structures have been solved for this class of enzymes, with PDB accession codes and .
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