Article
Loss of plasmid-mediated oligopeptide transport system in lactococci: another reason for slow milk coagulation.
Plasmid - 1 May 1996
Yu W, Gillies K, Kondo J K, Broadbent J R, McKay L L
Abstract excerpt
Fast milk-coagulating (Fmc+) strains of lactococci are known to segregate slow milk-coagulating (Fmc-) variants, which has been attributed to loss of proteinase (Prt) activity encoded by plasmid DNA. It was found that the Fmc- phenotype could also be due to loss of a plasmid encoding an oligopeptide permease (Opp) system. In Lactococcus lactis subsp. lactis (L. lactis) C2O, lactose metabolism (Lac) and Prt were...
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