Characterization of Nocardia plasmid pXT107.

Abstract:

:Nocardia, Rhodococcus and Streptomyces, all members of the actinomycetes family, are Gram-positive eubacteria with high G+C content and able to form mycelium. We report here a newly identified plasmid pXT107 of Nocardia sp. 107, one of the smallest circular plasmids found in Nocardia. The complete nucleotide sequence of pXT107 consisted of 4335 bp with 65% G+C content, and encoded one replication extragenic palindromic (Rep) and six hypothetical proteins. The Rep, double-strand origin and single-strand origin of pXT107 resembled those of typical rolling-circle-replication plasmids, such as pNI100 of Nocardia, pRE8424 of Rhodococcus and pIJ101 of Streptomyces. The Escherichia coli-Nocardia shuttle plasmid pHAQ22, containing the rep gene of pXT107, is able to propagate in Nocardia but not in Streptomyces.

authors

Xia HY,Tian YQ,Zhang R,Lin KC,Qin ZJ

doi

10.1111/j.1745-7270.2006.00207.x

subject

Has Abstract

pub_date

2006-09-01 00:00:00

pages

620-4

issue

9

eissn

1672-9145

issn

1745-7270

journal_volume

38

pub_type

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