sucrose-1,6-α-glucan 3(6)-α-glucosyltransferase

The enzyme was characterized from the dental caries bacterium Streptococcus mutans. It transfers glucosyl residues from sucrose to either the 6- or the 3-positions of glucose residues in glucans, producing a highly-branched extracellular D-glucan polymers that promote attachment of the bacteria to teeth. Three types of the enzyme have been described; the insoluble polymers produced by GTF-I and GTF-SI contain 85% α(1→3) bonds and 15% α(1→6) bonds, while the soluble polymers produced by GTF-S contain only 30% of α(1→3) bonds and 70% α(1→6) bonds. cf. EC 2.4.1.5, dextransucrase.

• Supplier: Creative Enzymes
• Product #: EXWM-2350
• CAS: 81725-87-3