Protein engineering study of beta-mannosidase to set up a potential chemically efficient biocatalyst

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F14%3A00073772" target="_blank" >RIV/00216224:14740/14:00073772 - isvavai.cz</a>

Alternative codes found

RIV/61388971:_____/14:00435519

Result on the web

<a href="http://glycob.oxfordjournals.org/content/24/12/1301.long" target="_blank" >http://glycob.oxfordjournals.org/content/24/12/1301.long</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/glycob/cwu074" target="_blank" >10.1093/glycob/cwu074</a>

Result language

angličtina

Original language name

Protein engineering study of beta-mannosidase to set up a potential chemically efficient biocatalyst

Original language description

This study is focused on the analysis and mutagenesis of beta-mannosidase from Bacteroides thetaiotaomicron with the aim of broadening its substrate specificity to 2-acetamido-2-deoxy-beta-d-mannopyranosyl (beta-ManNAc) derivatives. Various conformations(4C1, 4H5, and 1S5) of native and modified ligands were docked to the binding site of the protein to determine the most suitable conformation of sugars for further hydrolysis. Key amino acid residues were mutated in silico focusing on stabilizing the acetamido group of beta-ManNAc as well as forming the oxazoline intermediate needed for hydrolysis. The results of large set of 5 ns molecular dynamic simulations showed that the majority of the active site residues are involved in substrate interaction and do not exhibit a higher flexibility except for Asn178. Mutations of Asn178 to alanine and Asp199 to serine could lead to a stabilisation of the acetamido group in the binding site.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CE - Biochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Glycobiology

ISSN

0959-6658

e-ISSN

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Volume of the periodical

24

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

1301-1311

UT code for WoS article

000347410300011

EID of the result in the Scopus database

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