scholarly journals The catalase-peroxidase of Mycobacterium intracellulare: nucleotide sequence analysis and expression in Escherichia coli

1992 ◽  
Vol 138 (11) ◽  
pp. 2363-2370 ◽  
Author(s):  
S. L. Morris ◽  
J. Nair ◽  
D. A. Rouse
1989 ◽  
Vol 171 (1) ◽  
pp. 205-212 ◽  
Author(s):  
A A Tiedeman ◽  
J Keyhani ◽  
J Kamholz ◽  
H A Daum ◽  
J S Gots ◽  
...  

2006 ◽  
Vol 74 (9) ◽  
pp. 5408-5413 ◽  
Author(s):  
Carl Brinkley ◽  
Valerie Burland ◽  
Rogéria Keller ◽  
Debra J. Rose ◽  
Adam T. Boutin ◽  
...  

ABSTRACT The complete nucleotide sequence was determined for pMAR7, an enteropathogenic Escherichia coli (EPEC) adherence factor (EAF) plasmid that contains genes encoding a type IV attachment pilus (Bfp) and the global virulence regulator per. Prototypic EAF plasmid pMAR7 is self-transmissible, unlike the smaller EAF plasmid pB171, which has no genes encoding conjugative functions. The tra locus, a highly conserved 33-kb segment found in pMAR7, is similar to the tra (conjugation) region of the F plasmid. ISEc13 copies flanking the pMAR7 tra region could potentially mobilize or delete the tra genes. Hybridization of 134 EPEC strains showed that a complete tra region is present only in strains of the EPEC1 clonal group. This study confirms EPEC's potential for dissemination of virulence attributes by horizontal transfer of the EAF plasmid.


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