LldI, a plasmid-encoded type I restriction and modification system in Lactococcus lactis

被引：5

作者：

Deng, YM ^{[1
]}

Liu, CQ ^{[1
]}

Dunn, NW ^{[1
]}

机构：

[1] Univ New S Wales, Dept Biotechnol, Cooperat Res Ctr Food Ind Innovat, Sydney, NSW 2052, Australia

来源：

DNA SEQUENCE | 2000年 / 11卷 / 3-4期

关键词：

type I R-M system; plasmid pND861; Lactococcus lactis;

D O I：

10.3109/10425170009033237

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A plasmid-encoded type I restriction and modification (R-M) system, designated LldI, was identified in Lactococcus lactis biovar diacetylactis LD10-1. LldI consists of three genes encoding endonuclease, methylase and specificity subunits, respectively. RT-PCR analysis revealed that the three genes are co-transcribed as a polycistronic mRNA in L. lactis. The specificity subunit of LldI differs significantly in the target recognition domains from those of other type I R-M systems, suggesting that LldI confers a novel specificity in L. lactis.

引用

页码：239 / 245

页数：7

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