Dextrin dextranase explained

dextrin dextranase
Ec Number:	2.4.1.2
Cas Number:	9032-13-7
Go Code:	0050103

In enzymology, a dextrin dextranase is an enzyme that catalyzes the chemical reaction

(1,4-alpha-D-glucosyl)n + (1,6-alpha-D-glucosyl)m

\rightleftharpoons (1,4-alpha-D-glucosyl)n-1 + (1,6-alpha-D-glucosyl)m⁺1

Thus, the two substrates of this enzyme are (1,4-alpha-D-glucosyl)n and (1,6-alpha-D-glucosyl)m, whereas its two products are (1,4-alpha-D-glucosyl)n-1 and (1,6-alpha-D-glucosyl)m+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 1,4-alpha-D-glucan:1,6-alpha-D-glucan 6-alpha-D-glucosyltransferase. Other names in common use include dextrin 6-glucosyltransferase, and dextran dextrinase.

References

• Hehre EJ . 1951 . Enzymic synthesis of polysaccharides: a biological type of polymerization . Adv. Enzymol. Relat. Subj. Biochem. . 11 . 297 - 337 . 10.1002/9780470122563.ch6 . Advances in Enzymology - and Related Areas of Molecular Biology . 9780470122563 .
• Hehre EJ, Hamilton DM . 1949 . Bacterial conversion of dextrin into a polysaccharide with the serological properties of dextran . Proc. Soc. Exp. Biol. Med. . 71 . 336 - 339 . 10.3181/00379727-71-17183.
• Hehre EJ, Hamilton DM . 1953 . The biological synthesis of dextran from dextrins . J. Biol. Chem. . 192 . 161 - 174 .