PMID- 28281023 OWN - NLM STAT- MEDLINE DCOM- 20171013 LR - 20181113 IS - 1573-6776 (Electronic) IS - 0141-5492 (Print) IS - 0141-5492 (Linking) VI - 39 IP - 5 DP - 2017 May TI - Modification of fatty acid selectivity of Candida antarctica lipase A by error-prone PCR. PG - 767-773 LID - 10.1007/s10529-017-2299-0 [doi] AB - OBJECTIVE: To generate Candida antarctica lipase A (CAL-A) mutants with modified fatty acid selectivities and improved lipolytic activities using error-prone PCR (epPCR). RESULTS: A Candida antarctica lipase A mutant was obtained in three rounds of epPCR. This mutant showed a 14 times higher ability to hydrolyze triacylglycerols containing conjugated linoleic acids, and was 12 and 14 times more selective towards cis-9, trans-11 and trans-10, cis-12 isomers respectively, compared to native lipase. Lipolytic activities towards fatty acid esters were markedly improved, in particular towards butyric, lauric, stearic and palmitic esters. CONCLUSION: Directed molecular evolution is an efficient method to generate lipases with desirable selectivity towards CLA isomers and improved lipolytic activities towards esters of fatty acids. FAU - Glod, Dagmara AU - Glod D AD - Department of Food Biotechnology, University of Warmia and Mazury in Olsztyn, Heweliusz 1 Str., 10-718, Olsztyn, Poland. dagmara.glod@uwm.edu.pl. AD - Department of Pathophysiology, University of Warmia and Mazury in Olsztyn, al. Warszawska 30, 10-082, Olsztyn, Poland. dagmara.glod@uwm.edu.pl. LA - eng PT - Journal Article DEP - 20170309 PL - Netherlands TA - Biotechnol Lett JT - Biotechnology letters JID - 8008051 RN - 0 (Fungal Proteins) RN - 0 (Linoleic Acids, Conjugated) RN - 0 (Triglycerides) RN - EC 3.1.1.3 (Lipase) SB - IM MH - *Candida/enzymology/genetics/metabolism MH - Directed Molecular Evolution/*methods MH - Fungal Proteins/genetics/*metabolism MH - Linoleic Acids, Conjugated/analysis/chemistry/*metabolism MH - Lipase/genetics/*metabolism MH - Polymerase Chain Reaction/methods MH - Protein Engineering/methods MH - Triglycerides/analysis/chemistry/metabolism PMC - PMC5409807 OTO - NOTNLM OT - Conjugated linoleic acid OT - Directed molecular evolution OT - Error-prone PCR OT - Lipase OT - Protein engineering OT - Selectivity COIS- The author declares no financial or commercial conflict of interest. EDAT- 2017/03/11 06:00 MHDA- 2017/10/14 06:00 PMCR- 2017/03/09 CRDT- 2017/03/11 06:00 PHST- 2016/10/07 00:00 [received] PHST- 2017/02/02 00:00 [accepted] PHST- 2017/03/11 06:00 [pubmed] PHST- 2017/10/14 06:00 [medline] PHST- 2017/03/11 06:00 [entrez] PHST- 2017/03/09 00:00 [pmc-release] AID - 10.1007/s10529-017-2299-0 [pii] AID - 2299 [pii] AID - 10.1007/s10529-017-2299-0 [doi] PST - ppublish SO - Biotechnol Lett. 2017 May;39(5):767-773. doi: 10.1007/s10529-017-2299-0. Epub 2017 Mar 9.