Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/353350
Type: Artigo
Title: Insights into the structure and function of fungal β‐mannosidases from glycoside hydrolase family 2 based on multiple crystal structures of the Trichoderma harzianum enzyme
Author: Nascimento, Alessandro S.
Muniz, Joao Renato C.
Aparício, Ricardo
Golubev, Alexander M.
Polikarpov, Igor
Abstract: Hemicellulose is an important part of the plant cell wall biomass, and is relevant to cellulosic ethanol technologies. β‐Mannosidases are enzymes capable of cleaving nonreducing residues of β‐d‐mannose from β‐d‐mannosides and hemicellulose mannose‐containing polysaccharides, such as mannans and galactomannans. β‐Mannosidases are distributed between glycoside hydrolase (GH) families 1, 2, and 5, and only a handful of the enzymes have been structurally characterized to date. The only published X‐ray structure of a GH family 2 mannosidase is that of the bacterial Bacteroides thetaiotaomicron enzyme. No structures of eukaryotic mannosidases of this family are currently available. To fill this gap, we set out to solve the structure of Trichoderma harzianum GH family 2 β‐mannosidase and to refine it to 1.9‐Å resolution. Structural comparisons of the T. harzianum GH2 β‐mannosidase highlight similarities in its structural architecture with other members of GH family 2, reveal the molecular mechanism of β‐mannoside binding and recognition, and shed light on its putative galactomannan‐binding site
Subject: Glicosídeo hidrolases
Country: Reino Unido
Editor: Wiley
Rights: Fechado
Identifier DOI: 10.1111/febs.12894
Address: https://febs.onlinelibrary.wiley.com/doi/full/10.1111/febs.12894
Date Issue: 2014
Appears in Collections:IQ - Artigos e Outros Documentos

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