Structural highlights
Publication Abstract from PubMed
Carbohydrate esterase catalyzes the de-O or de-N-acylation of substituted saccharides in plant cell walls and thus has great potential for industrial biomass saccharification. We recently identified the putative carbohydrate esterase family 3 (CE3) from Talaromyces cellulolyticus. Here, we prepared the recombinant catalytic domain of the enzyme and crystallized it. The crystal structure was determined to 1.5 A resolution. From the structural analysis, it was elucidated that a n-octyl-beta-D-glucopyranoside bound to near the catalytic triad (Ser10, Asp179 and His182) and was buried in the active site cavity. Site-directed mutagenesis showed that the N-terminal disulfide bond located near the catalytic triad is involved in the activity and structural stability of the enzyme.
Crystal structure of an acetylesterase from Talaromyces cellulolyticus and the importance of a disulfide bond near the active site.,Watanabe M, Fukada H, Inoue H, Ishikawa K FEBS Lett. 2015 May 8;589(11):1200-6. doi: 10.1016/j.febslet.2015.03.020. Epub, 2015 Mar 28. PMID:25825334[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Watanabe M, Fukada H, Inoue H, Ishikawa K. Crystal structure of an acetylesterase from Talaromyces cellulolyticus and the importance of a disulfide bond near the active site. FEBS Lett. 2015 May 8;589(11):1200-6. doi: 10.1016/j.febslet.2015.03.020. Epub, 2015 Mar 28. PMID:25825334 doi:http://dx.doi.org/10.1016/j.febslet.2015.03.020
