A novel bicistronic vector for overexpressing Mycobacterium tuberculosis proteins in Escherichia coli

Alternative approach to express Mycobacterium tuberculosis proteins in Escherichia coli.

NASBA Isothermal Technique: a Novel Tool for Mycobacterium tuberculosis Diagnosis

Background and Objectives: rapid, accurate and cost effective diagnosis of infectious and non infectious diseases is an essential step for treatment process. Nowadays, in Line with scientific progression in molecular biology, genetics and biochemistry which are based on biotechnology and genetic engineering aspects, new branch of medicine entitled molecular medicine is being derived. It can be ...

Mycobacterium tuberculosis HspX/EsxS Fusion Protein: Gene Cloning, Protein Expression, and Purification in Escherichia coli

Background: The purpose of this study was to clone, express, and purify a novel multidomain fusion protein of Micobacterium tuberculosis (Mtb) in a prokaryotic system. Methods: An hspX/esxS gene construct was synthesized and ligated into a pGH plasmid, E. coli TOP10 cells were transformed, and the vector was purified. The vector containing the construct and pET-21b (+) plasmid were digested ...

Chimeras of Escherichia coli and Mycobacterium tuberculosis Single-Stranded DNA Binding Proteins: Characterization and Function in Escherichia coli

Single stranded DNA binding proteins (SSBs) are vital for the survival of organisms. Studies on SSBs from the prototype, Escherichia coli (EcoSSB) and, an important human pathogen, Mycobacterium tuberculosis (MtuSSB) had shown that despite significant variations in their quaternary structures, the DNA binding and oligomerization properties of the two are similar. Here, we used the X-ray crystal...

Optimizing Escherichia coli as a protein expression platform to produce Mycobacterium tuberculosis immunogenic proteins

BACKGROUND A number of valuable candidates as tuberculosis vaccine have been reported, some of which have already entered clinical trials. The new vaccines, especially subunit vaccines, need multiple administrations in order to maintain adequate life-long immune memory: this demands for high production levels and degree of purity. RESULTS In this study, TB10.4, Ag85B and a TB10.4-Ag85B chimer...