NDLI: High-level heterologous production and functional expression of the sec-dependent enterocin P from Enterococcus faecium P13 in Lactococcus lactis

Content Provider	Springer Nature Link
Author	Gutiérrez, Jorge Larsen, Rasmus Cintas, Luis M. Kok, Jan Hernández, Pablo E.
Copyright Year	2006
Abstract	Enterocin P (EntP), a sec-dependent bacteriocin from Enterococcus faecium P13, was produced by Lactococcus lactis. The EntP structural gene (entP) with or without the EntP immunity gene (entiP) was cloned in (1), plasmid pMG36c under control of the lactococcal constitutive promoter P32, (2) in plasmid pNG8048e under control of the inducible PnisA promoter, and (3) in the integration vector pINT29. Introduction of the recombinant vectors in L. lactis resulted in production of biologically active EntP in the supernatants of L. lactis subsp. lactis IL1403 and L. lactis subsp. cremoris NZ9000, and the coproduction of nisin A and EntP in L. lactis subsp. lactis DPC5598. The level of production of EntP, detected and quantified by specific anti-EntP antibodies and a noncompetitive indirect enzyme-linked immunosorbent assay, by the recombinant L. lactis strains depended on the host strain, the expression vector, and the presence of the entiP gene in the constructs of the recombinant L. lactis strains. The highest amount of EntP was produced with derivatives containing entP and entiP, for both L. lactis IL1403 and L. lactis NZ9000. These derivatives produced up to five- to six-fold more EntP than E. faecium P13. Mass spectrometry analysis revealed that EntP purified from L. lactis IL1403 (pJP214) has a molecular mass identical to that purified from E. faecium P13, suggesting that the synthesis, processing, and secretion of EntP progresses efficiently in recombinant L. lactis hosts.
Starting Page	41
Ending Page	51
Page Count	11
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	72
Issue Number	1
e-ISSN	14320614
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-01-17
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Microbial Genetics and Genomics Microbiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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