Potential drug targets in the Mycobacterium tuberculosis cytochrome P450 system

Area of Science:

• Biochemistry
• Microbiology
• Drug Discovery

Background:

• The Mycobacterium tuberculosis genome encodes 20 cytochrome P450 enzymes, primarily involved in physiological functions.
• The specific roles of most of these enzymes remain largely unknown.
• Despite functional obscurity, significant data exists for nine specific cytochrome P450 enzymes.

Purpose of the Study:

• To review available information on nine well-characterized Mycobacterium tuberculosis cytochrome P450 enzymes.
• To highlight CYP121, CYP125, and CYP142 as potential targets for antituberculosis drug development.

Main Methods:

• Compilation and synthesis of spectroscopic, biophysical, crystallographic, and catalytic data.
• Focus on enzymes from Mycobacterium tuberculosis and Mycobacterium smegmatis.

Main Results:

• Detailed information is available for nine cytochrome P450 enzymes, though knowledge gaps persist.
• At least three well-characterized enzymes present viable targets for new anti-TB drug discovery.

Conclusions:

• Cytochrome P450 enzymes in M. tuberculosis are important for its physiology.
• CYP121, CYP125, and CYP142 are promising candidates for therapeutic intervention against tuberculosis.