Alginate lyase. This family contains several bacterial alginate lyase proteins. Alginate is a family of 1-4-linked copolymers of beta -D-mannuronic acid (M) and alpha -L-guluronic acid (G). It is produced by brown algae and by some bacteria belonging to the genera Azotobacter and Pseudomonas. Alginate lyases catalyze the depolymerization of alginates by beta -elimination, generating a molecule containing 4-deoxy-L-erythro-hex-4-enepyranosyluronate at the nonreducing end. This family adopts an all alpha fold.
Crystal structure of an alginate lyase (BACOVA_01668) from Bacteroides ovatus at 1.95 A resolution [Bacteroides ovatus ATCC 8483],3NNB_A Crystal structure of an alginate lyase (BACOVA_01668) from Bacteroides ovatus at 1.60 A resolution [Bacteroides ovatus ATCC 8483]