Sainz Polo, M. A.Valenzuela Mayorga, Susana ValeriaPastor Blasco, Francisco I. JavierSanz Aparicio, J.2014-11-052014-11-0520141744-3091https://hdl.handle.net/2445/59423Xyn30D, a new member of a recently identified group of xylanases, has been purified and crystallized. Xyn30D is a bimodular enzyme composed of an N-terminal catalytic domain belonging to glycoside hydrolase family 30 (GH30) and a C-terminal family 35 carbohydrate-binding domain (CBM35) able to bind xylans and glucuronic acid. Xyn30D shares the characteristic endo mode of action described for GH30 xylanases, with the hydrolysis of the [beta]-(1,4) bonds of xylan being directed by [alpha]-1,2-linked glucuronate moieties, which have to be placed at the -2 subsite of the xylanase active site. Crystals of the complete enzyme were obtained and a full data set to 2.3 Å resolution was collected using a synchrotron X-ray source. This represents the first bimodular enzyme with the domain architecture GH30-CBM35. This study will contribute to the understanding of the role that the different xylanases play in the depolymerization of glucuronoxylan.5 p.application/pdfeng(c) International Union of Crystallography, 2014Enzims microbiansBiopolímersMicrobial enzymesBiopolymersCrystallization and preliminary X-ray diffraction analysis of Xyn30D from Paenibacillus barcinonensisinfo:eu-repo/semantics/article6442902014-11-05info:eu-repo/semantics/openAccess25005099