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Structural bioinformatics study of EPSP synthase from Mycobacterium tuberculosis
José Henrique Pereira1, Fernanda Canduri, Jaim Simões de Oliveira
1Departamento de Física, UNESP, São José do Rio Preto, SP 15054-000, Brazil.
Biochemical and Biophysical Research Communications
|December 19, 2003
Summary
Researchers modeled Mycobacterium tuberculosis EPSP synthase, a key enzyme in the essential shikimate pathway. This structural framework aids in developing new anti-mycobacterial agents targeting this pathway absent in humans.
Area of Science:
- Biochemistry
- Structural Biology
- Drug Discovery
Background:
- The shikimate pathway is vital for bacteria, fungi, and plants but not mammals, making it a prime target for drug development.
- Mycobacterium tuberculosis possesses enzymes homologous to the shikimate pathway, including EPSP synthase.
Purpose of the Study:
- To perform molecular modeling of 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase from M. tuberculosis.
- To provide a structural basis for designing specific inhibitors against M. tuberculosis.
Main Methods:
- Sequence homology analysis to identify EPSP synthase in M. tuberculosis.
- Molecular modeling techniques to generate structural models of the enzyme.
Main Results:
- Developed molecular models of M. tuberculosis EPSP synthase.
- Identified significant domain reorientations leading to 'open' and 'closed' conformations.
- Discussed the potential role of these conformational changes in ligand binding.
Conclusions:
- The molecular models offer a structural framework for anti-mycobacterial drug design.
- Understanding the conformational flexibility of EPSP synthase is crucial for inhibitor development.