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Updated: Jun 12, 2026

A New Approach for the Comparative Analysis of Multiprotein Complexes Based on 15N Metabolic Labeling and Quantitative Mass Spectrometry
Published on: March 13, 2014
Structural basis for conservation in the CYP51 family
Galina I Lepesheva1, Michael R Waterman
1Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146, USA. galina.i.lepesheva@vanderbilt.edu
Sterol 14α-demethylases (14DM) are vital CYP51 enzymes found across all life. This review details conserved amino acids and CYP51 variants, aiding the development of targeted inhibitors for microbial infections.
Area of Science:
- Biochemistry
- Molecular Biology
- Enzymology
Background:
- Sterol 14α-demethylases (14DM), part of the CYP51 cytochrome P450 family, are crucial for sterol biosynthesis, essential for cellular membranes.
- 14DM is a highly conserved enzyme found in all biological kingdoms, with sequence identities between orthologs ranging from 20-30%.
Purpose of the Study:
- To review the conservation of specific amino acids within CYP51 orthologs.
- To elucidate the roles of these conserved amino acids in the structure and function of 14DM.
- To provide a foundation for understanding 14DM inhibition for therapeutic applications.
Main Methods:
- Analysis of high-resolution tertiary structures of 14DM enzymes.
- Comparative analysis of amino acid sequences across different kingdoms.
- Literature review on CYP51 orthologs and their functions.
Main Results:
- Identification of conserved amino acids critical for 14DM activity.
- Insights into the structural and functional roles of various CYP51 orthologs.
- Understanding of the 14α-demethylase reaction mechanism.
Conclusions:
- Conserved amino acids and ortholog variations in 14DM are key to its function.
- Structural insights facilitate understanding of enzyme mechanisms.
- This knowledge is vital for designing selective inhibitors against pathogenic microbes.
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