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@ARTICLE{Kopka:202468,
author = {Kopka, Benita and Diener, Martin and Wirtz, Astrid and
Pohl, Martina and Jaeger, Karl-Erich and Krauss, Ulrich},
title = {{P}urification and simultaneous immobilization of
{A}rabidopsis thaliana hydroxynitrile {L}yase using a
{F}amily 2 carbohydrate-binding module},
journal = {Biotechnology journal},
volume = {10},
number = {5},
issn = {1860-6768},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2015-04682},
pages = {811 - 819},
year = {2015},
abstract = {Tedious, time- and labor-intensive protein purification and
immobilization procedures still represent a major bottleneck
limiting the widespread application of enzymes in synthetic
chemistry and industry. We here exemplify a simple strategy
for the direct site-specific immobilization of proteins from
crude cell extracts by fusion of a family 2
carbohydrate-binding module (CBM) derived from the
exoglucanase/xylanase Cex from Cellulomonas fimi to a target
enzyme. By employing a tripartite fusion protein consisting
of the CBM, a flavin-based fluorescent protein (FbFP), and
the Arabidopsis thaliana hydroxynitrile lyase (AtHNL),
binding to cellulosic carrier materials can easily be
monitored via FbFP fluorescence. Adsorption properties
(kinetics and quantities) were studied for commercially
available Avicel PH-101 and regenerated amorphous cellulose
(RAC) derived from Avicel. The resulting immobilizates
showed similar activities as the wild-type enzyme but
displayed increased stability in the weakly acidic pH range.
Finally, Avicel, RAC and cellulose acetate (CA) preparations
were used for the synthesis of (R)-mandelonitrile in
micro-aqueous methyl tert-butyl ether (MTBE) demonstrating
the applicability and stability of the immobilizates for
biotransformations in both aqueous and organic reaction
systems.},
cin = {IBG-1 / IMET},
ddc = {570},
cid = {I:(DE-Juel1)IBG-1-20101118 / I:(DE-Juel1)IMET-20090612},
pnm = {581 - Biotechnology (POF3-581)},
pid = {G:(DE-HGF)POF3-581},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000354199700016},
pubmed = {pmid:25755120},
doi = {10.1002/biot.201400786},
url = {https://juser.fz-juelich.de/record/202468},
}