INTERBRANCH SEQUENCES IN THE WHEAT ARABINO-XYLAN: SELECTIVE ENZYMOLYSIS STUDIES

UDP-Xylose-stimulated glucuronyltransferase activity in wheat microsomal membranes: characterization and role in glucurono(arabino)xylan biosynthesis.

Microsomal membranes from etiolated wheat (Triticum aestivum) seedlings cooperatively incorporated xylose (Xyl), arabinose, and glucuronic acid residues from their corresponding uridine 5'-diphosphosugars into an ethanol-insoluble glucurono(arabino)xylan (GAX)-like product. A glucuronyltransferase activity that is enhanced by the presence of UDP-Xyl was also identified in these microsomes. Whea...

A glucurono(arabino)xylan synthase complex from wheat contains members of the GT43, GT47, and GT75 families and functions cooperatively.

Glucuronoarabinoxylans (GAXs) are the major hemicelluloses in grass cell walls, but the proteins that synthesize them have previously been uncharacterized. The biosynthesis of GAXs would require at least three glycosyltransferases (GTs): xylosyltransferase (XylT), arabinosyltransferase (AraT), and glucuronosyltransferase (GlcAT). A combination of proteomics and transcriptomics analyses revealed...

The role of acetyl xylan esterase in the solubilization of xylan and enzymatic hydrolysis of wheat straw and giant reed

BACKGROUND Due to the complexity of lignocellulosic materials, a complete enzymatic hydrolysis into fermentable sugars requires a variety of cellulolytic and xylanolytic enzymes. Addition of xylanases has been shown to significantly improve the performance of cellulases and to increase cellulose hydrolysis by solubilizing xylans in lignocellulosic materials. The goal of this work was to investi...

Assessment of Proteomics Strategies for Plant Cell Wall Glycosyltransferases in Wheat, a Non-Model Species: Glucurono(Arabino)Xylan as a Case Study

Selective deficits in human audition: evidence from lesion studies

The human auditory cortex is the gateway to the most powerful and complex communication systems and yet relatively little is known about its functional organization as compared to the visual system. Several lines of evidence, predominantly from recent studies, indicate that sound recognition and sound localization are processed in two at least partially independent networks. Evidence from human...