نتایج جستجو برای: xylanases

تعداد نتایج: 710  

Journal: :Applied and environmental microbiology 1994
G Elegir G Szakács T W Jeffries

The endoxylanase complex from Streptomyces sp. strain B-12-2 was purified and characterized. The organism forms five distinct xylanases in the absence of significant cellulase activity when grown on oat spelt xylan. This is the largest number of endoxylanases yet reported for a streptomycete. On the basis of their physiochemical characteristics, they can be divided into two groups: the first gr...

Journal: :The Journal of biological chemistry 2011
Márcia A S Correia Koushik Mazumder Joana L A Brás Susan J Firbank Yanping Zhu Richard J Lewis William S York Carlos M G A Fontes Harry J Gilbert

The enzymatic degradation of plant cell walls plays a central role in the carbon cycle and is of increasing environmental and industrial significance. The enzymes that catalyze this process include xylanases that degrade xylan, a β-1,4-xylose polymer that is decorated with various sugars. Although xylanases efficiently hydrolyze unsubstituted xylans, these enzymes are unable to access highly de...

2017
Denisse Bender Renata Nemeth Michaela Wimmer Sylvia Götschhofer Matilde Biolchi Kitti Török Sandor Tömösközi Stefano D'Amico Regine Schoenlechner

Physicochemical and functional properties of arabinoxylans (AXs) can be significantly influenced by their isolation method. Finding balanced process conditions that allow optimal extraction yields while preserving AXs functionality is a challenge. The aim of this study was to determine the effect of different chemical solvents with neutral and alkaline pH on the intrinsic properties and extract...

Journal: :The Biochemical journal 1999
W R McLauchlan M T Garcia-Conesa G Williamson M Roza P Ravestein J Maat

We have purified a novel class of protein that can inhibit the activity of endo-beta-1,4-xylanases. The inhibitor from wheat (Triticum aestivum, var. Soisson) is a glycosylated, monomeric, basic protein with a pI of 8.7-8.9, a molecular mass of 29 kDa and a unique N-terminal sequence of AGGKTGQVTVFWGRN. We have shown that the protein can inhibit the activity of two family-11 endo-beta-1, 4-xyla...

Journal: :The Biochemical journal 2007
Ellen Fierens Sigrid Rombouts Kurt Gebruers Hans Goesaert Kristof Brijs Johnny Beaugrand Guido Volckaert Steven Van Campenhout Paul Proost Christophe M Courtin Jan A Delcour

Wheat (Triticum aestivum) contains a previously unknown type of xylanase (EC 3.2.1.8) inhibitor, which is described in the present paper for the first time. Based on its >60% similarity to TLPs (thaumatin-like proteins) and the fact that it contains the Prosite PS00316 thaumatin family signature, it is referred to as TLXI (thaumatin-like xylanase inhibitor). TLXI is a basic (pI> or =9.3 in isoe...

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