TY - JOUR
T1 - Isolation of enterocin SE-K4-encoding plasmid and a high enterocin SE-K4 producing strain of enterococcus faecalis K-4
AU - Doi, Katsumi
AU - Eguchi, Tomoko
AU - Choi, Seong Hyun
AU - Iwatake, Atsushi
AU - Ohmomo, Sadahiro
AU - Ogata, Seiya
PY - 2002
Y1 - 2002
N2 - Enterococcus faecalis K-4, which produces a class IIa bacteriocin, enterocin SE-K4, carries two plasmids, pEK4S (approximately 60 kb) and pEK4L (approximately 75 kb). Plasmid-curing experiments showed that pEK4S was involved in the production of and immunity to enterocin SE-K4 in strain K-4. A derivative strain, M6, with pEK4S produced a higher amount of enterocin SE-K4 than the parental strain K-4, although its growth rate was lower than that of parental strain K-4. Phenotypic changes in strain M6 are attributed to an increase in plasmid copy number.
AB - Enterococcus faecalis K-4, which produces a class IIa bacteriocin, enterocin SE-K4, carries two plasmids, pEK4S (approximately 60 kb) and pEK4L (approximately 75 kb). Plasmid-curing experiments showed that pEK4S was involved in the production of and immunity to enterocin SE-K4 in strain K-4. A derivative strain, M6, with pEK4S produced a higher amount of enterocin SE-K4 than the parental strain K-4, although its growth rate was lower than that of parental strain K-4. Phenotypic changes in strain M6 are attributed to an increase in plasmid copy number.
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U2 - 10.1016/S1389-1723(02)80081-0
DO - 10.1016/S1389-1723(02)80081-0
M3 - Article
C2 - 16233228
AN - SCOPUS:0036353079
SN - 1389-1723
VL - 93
SP - 434
EP - 436
JO - Journal of Bioscience and Bioengineering
JF - Journal of Bioscience and Bioengineering
IS - 4
ER -