4.2.2.3 acetyl-beta1,4-D-mannuronic acid - 4.2.2.3 additional information - 4.2.2.3 sodium alginate - 4.2.2.3 alginate a heteropolymer consisiting of beta1,4-D-mannuronic acid and alpha1,4-L-guluronic acid 4.2.2.3 alginate a heteropolymer consisting of beta1,4-D-mannuronic acid and alpha1,4-L-guluronic acid 4.2.2.3 additional information A1-1V' has no significant role in alginate metabolism 4.2.2.3 additional information activity of AlgL is required for alginate production 4.2.2.3 additional information AkAly28 hardly degrades oligosaccharides smaller than tetrasaccharide, while AkAly33 degrades oligosaccharides larger than disaccharide producing disaccharide and 2-keto-3-deoxy-gluconaldehyde, substrate specificities, production of oligosaccharides, analysis by anion-exchange chromatography, overview 4.2.2.3 additional information alginate is a linear hetero-polyuronic acid composed of 1,4 linked alpha-L-guluronic acid (G) and beta-D-mannuronic acid. Alginate lyase aly-SJ02 is bifunctional. Aly-SJ02 shows activities toward both polyG (alpha-L-guluronic acid), activity of EC 4.2.2.11, and polyM (beta-D-mannuronic acid). Aly-SJ02 mainly releases dimers and trimers from polyM and alginate, and trimers and tetramers from polyG 4.2.2.3 additional information alginate lyase A degrades M and G blocks, and the enzyme activity acting on M block is much more than that of G block, while for alginate lyase B, the enzyme activities on M block are slightly higher than that of G block