期刊
FEBS LETTERS
卷 583, 期 8, 页码 1323-1326出版社
WILEY
DOI: 10.1016/j.febslet.2009.03.034
关键词
Cellouronate; Glucuronan; TEMPO oxidation; Polysaccharide lyase; beta-Jelly roll fold; Trichoderma reesei
The crystal structure of endo-beta-(1 -> 4)-glucuronan lyase from Trichoderma reesei (TrGL) has been determined at 1.8 angstrom resolution as the first three-dimensional structure of polysaccharide lyase (PL) family 20. TrGL has a typical beta-jelly roll fold, which is similar to glycoside hydrolase family 16 and PL7 enzymes. A calcium ion is bound to the site far from the cleft and appears to contribute to the stability. There are several completely conserved residues in the cleft. Possible catalytic residues are predicted based on structural comparison with PL7 alginate lyase A1-II'. (C) 2009 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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