PRESENCE OF 5-METHYLCYTOSINE IN CC(A/T)GG SEQUENCES (DCM METHYLATION) IN DNAS FROM DIFFERENT BACTERIA

被引：26

作者：

GOMEZEICHELMANN, MC ^{[1
]}

LEVYMUSTRI, A ^{[1
]}

RAMIREZSANTOS, J ^{[1
]}

机构：

[1] NATL AUTONOMOUS UNIV MEXICO,INST INVEST BIOMED,POB 70228,MEXICO CITY 04510,DF,MEXICO

来源：

JOURNAL OF BACTERIOLOGY | 1991年 / 173卷 / 23期

关键词：

D O I：

10.1128/JB.173.23.7692-7694.1991

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The presence of CC(A/T)GG sequences with methylated internal cytosine (Dcm methylation) was determined in DNA from different genera of eubacteria. This methylation was studied by using restriction enzymes EcoRII and BstNI, which cleave unmethylated or methylated CC(A/T)GG sequences. Dcm methylation was only detected in genera of the family Enterobacteriaceae closely related to Escherichia: Shigella, Citrobacter, Salmonella, and Klebsiella.

引用

页码：7692 / 7694

页数：3

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