Role of P27-P55 operon in Mycobacterium tuberculosis resistance
Author Information
Author(s): Bianco María V, Blanco Federico C, Imperiale Belén, Forrellad Marina A, Rocha Roxana V, Klepp Laura I, Cataldi Angel A, Morcillo Nora, Bigi Fabiana
Primary Institution: Instituto de Biotecnología, CICVyA-INTA
Hypothesis
The study aims to determine the individual contribution of the proteins encoded in the P27-P55 operon to the resistance to toxic compounds and to the cell wall integrity of M. tuberculosis.
Conclusion
P27 and P55 are functionally connected in processes that involve the preservation of the cell wall and the transport of toxic compounds away from the cells.
Supporting Evidence
- The mutant strain decolorized malachite green faster than the wild type strain.
- Deletion of the P27-P55 operon made M. tuberculosis susceptible to sodium dodecyl sulfate.
- Both P27 and P55 are required to restore the wild type phenotypes in the mutant.
Takeaway
This study found that two proteins in tuberculosis bacteria help it resist harmful substances and keep its outer layer strong.
Methodology
The susceptibility of a mutant strain of M. tuberculosis to various toxic compounds was tested by cultivating it alongside wild type and complemented strains in the presence of these drugs.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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