BACKGROUND Clone libraries provide researchers with a powerful resource to study nucleic acid from diverse sources. Metagenomic clone libraries in particular have aided in studies of microbial biodiversity and function, and allowed the mining of novel enzymes. Libraries are often constructed by cloning large inserts into cosmid or fosmid vectors. Recently, there have been reports of GC bias in ...

A multi locus sequence analysis (MLSA approach) was studied on the Bacillus genus, or subtilis species complex for specific, including 08 strains from four (B. subtilis, B. pumilus, licheniformis and amyloliquefaciens) were provided by Biotechnology Center of Ho Chi Minh City. The research based sequences 16S rRNA genes, concatenation five protein-coding housekeeping genes: glpF, pta, purH, pyc...

While the amount of molecular data that can be routinely generated continues to increase, advances in the methods of analysis to handle this quantity of data have not kept pace. One area of research which could greatly benefit from new approaches is the design of specific probes and PCR primers. Here we generated spanning networks (1) for phytopathogenic Pseudomonas strains from seven species, ...

An allele of rpoD (rpoD1181) that results in increased synthesis of the pyrimidine moiety of thiamine in Salmonella enterica was identified. The S508Y substitution caused by rpoD1181 is analogous to the S506F derivative of the Escherichia coli protein. The properties of this E. coli mutant protein have been well characterized in vitro. Identification of a metabolic phenotype caused by the rpoD1...

The CbpA protein is an analog of the DnaJ molecular chaperone of Escherichiu coli. The &I./cbpAdouble-null mutant exhibits severe defects in cell growth, namely, a very narrow temperature range for growth. To gain insight into the functions of CbpA as well as DnaJ, we isolated a multicopy suppressor gene that permits this &XLcbpA _ mutant to grow normally at low temperatures. The suppressor gen...