GENOMIC ORGANIZATION OF THE MYCOBACTERIAL SIGMA-GENE-CLUSTER

被引:78
作者
DOUKHAN, L
PREDICH, M
NAIR, G
DUSSURGET, O
MANDICMULEC, I
COLE, ST
SMITH, DR
SMITH, I
机构
[1] PUBL HLTH RES INST, DEPT MICROBIOL, NEW YORK, NY 10016 USA
[2] UNIV PARIS 07, DEPT MICROBIOL, F-75251 PARIS 05, FRANCE
[3] ROCKEFELLER UNIV, CELLULAR PHYSIOL & IMMUNOL LAB, NEW YORK, NY 10021 USA
[4] INST PASTEUR, GENET MOLEC BACTERIENNE LAB, F-75724 PARIS 15, FRANCE
[5] COLLABORAT RES INC, WALTHAM, MA 01254 USA
关键词
D O I
10.1016/0378-1119(95)00427-8
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
We have previously described sigma(A) and sigma(B) and their structural genes, mysA and mysB, respectively, in Mycobacterium smegmatis. We have now sequenced the corresponding regions in the M. tuberculosis and M. leprae chromosomes, and have found the two homologous genes. The chromosomal linkage and the deduced amino acid (aa) sequences of the two genes show very high similarity in the three species of mycobacteria. We also report the finding of two other open reading frames (ORF) in these clusters. orfX, which has an unknown function, is located between mysA and mysB. The other ORF, located downstream from mysB, encodes a homolog of DtxR, the iron regulatory protein from Corynebacterium diphtheriae (Cd).
引用
收藏
页码:67 / 70
页数:4
相关论文
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