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Tuberculosis

Tuberculosis

Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...

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Updated: Jul 13, 2026

System for Efficacy and Cytotoxicity Screening of Inhibitors Targeting Intracellular Mycobacterium tuberculosis

System for Efficacy and Cytotoxicity Screening of Inhibitors Targeting Intracellular Mycobacterium tuberculosis

Published on: April 5, 2017

Two-component systems of Mycobacterium tuberculosis: structure-based approaches.

Paul A Tucker¹, Elzbieta Nowak, Jens Preben Morth

¹Hamburg Outstation, European Molecular Biology Laboratory (EMBL), Hamburg, Germany.

Methods in Enzymology

|July 5, 2007

Summary

Mycobacterium tuberculosis has limited two-component systems, but they are crucial for pathogen survival and virulence. Structural genomics projects provide key insights into these essential bacterial signaling pathways.

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Area of Science:

Microbiology
Bacterial Pathogenesis
Structural Genomics

Background:

Mycobacterium tuberculosis possesses fewer bacterial two-component systems (TCS) than many other bacteria.
Serine/threonine signaling pathways may compensate for the limited number of TCS in mycobacteria.
Despite their scarcity, TCS are vital for early intracellular survival and virulence in M. tuberculosis.

Purpose of the Study:

To review current knowledge on mycobacterial two-component systems.
To highlight the contribution of structural genomics to understanding these systems.

Main Methods:

Literature review focusing on mycobacterial TCS.
Analysis of data from structural genomics projects.

Main Results:

Identification and characterization of known mycobacterial TCS.
Insights into the structural basis of TCS function derived from genomics data.

Conclusions:

Mycobacterial TCS, though few, are critical for virulence and survival.
Structural genomics is a valuable approach for elucidating the function of these systems.