Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Conversion of a mono- and diacylglycerol lipase into a triacylglycerol lipase by protein engineering.
ChemBioChem 16, 1431-1434 (2015)
Despite the fact that most lipases are believed to be active against triacylglycerides, there is a small group of lipases that are active only on mono- and diacylglycerides. The reason for this difference in substrate scope is not clear. We tried to identify the reasons for this in the lipase from Malassezia globosa. By protein engineering, and with only one mutation, we managed to convert this enzyme into a typical triacylglycerol lipase (the wild-type lipase does not accept triacylglycerides). The variant Q282L accepts a broad spectrum of triacylglycerides, although the catalytic behavior is altered to some extent. From in silico analysis it seems that specific hydrophobic interactions are key to the altered substrate specificity. A mono- and diglyceride lipase was engineered to a triacylglyceride lipase by introducing a single point mutation (Q282L). The variant has broad substrate specificity on triacylglycerides. The results indicate that the main reason that the wild-type enzyme does not accept triacylglycerides is not their bulkiness, but specific hydrophobic interactions.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
0.845
0.845
14
19
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Enzyme Catalysis ; Lipases ; Protein Engineering ; Steric Hindrance ; Substrate Specificity; Pichia-pastoris; Specificity; Brain
Sprache
englisch
Veröffentlichungsjahr
2015
HGF-Berichtsjahr
2015
ISSN (print) / ISBN
1439-4227
e-ISSN
1439-7633
Zeitschrift
ChemBioChem
Quellenangaben
Band: 16,
Heft: 10,
Seiten: 1431-1434
Verlag
Wiley
Verlagsort
Weinheim
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Structural Biology (STB)
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503000-003
WOS ID
WOS:000357326200006
Scopus ID
84934270771
Scopus ID
84930371852
Erfassungsdatum
2015-06-12