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Updated: Jul 10, 2025
Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Cloning, Purification, and Biophysical Characterization of FemB Protein from Methicillin-Resistant Staphylococcus
Anjini Gayatri Akkiraju1, Krishnam Raju Atcha2, Someswar Rao Sagurthi3
1Molecular Medicine Lab, Dept. of Genetics & Biotechnology, Osmania University, Hyderabad, Telangana, 500007, India.
Abstract:
Methicillin-resistant Staphylococcus aureus has emerged as a leading cause of nosocomial, community acquired infections worldwide. Earlier investigations revealed that mecA-encoded FEM proteins play a role in antimicrobial resistance by developing unique peptidoglycan cross-linking which helps in the formation of protective cell membrane. In view to this, present study focused on expression, purification FEM proteins, and FemB biophysical characterization with the aid of in silico and in vitro approaches. Furthermore, we carried out biological screening assays and identified the novel potent 1,2,3-triazole conjugated 1,3,4-oxadiazole hybrid molecule which could inhibit the MRSA than the proven oxacillin.
Insights
Researchers explored Methicillin-resistant Staphylococcus aureus (MRSA) resistance mechanisms by studying FEM proteins. They discovered a novel hybrid molecule that shows greater MRSA inhibition than oxacillin.
Area of Science:
- Microbiology
- Biochemistry
- Medicinal Chemistry
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a significant global pathogen causing healthcare-associated and community-acquired infections.
- FEM proteins, encoded by the mecA gene, are implicated in antimicrobial resistance through unique peptidoglycan cross-linking, contributing to cell membrane stability.
Purpose of the Study:
- To express and purify FEM proteins for further study.
- To perform biophysical characterization of the FemB protein using in silico and in vitro methods.
- To identify novel compounds with potent MRSA inhibitory activity.
Main Methods:
- In silico and in vitro biophysical characterization of FemB protein.
- Expression and purification of FEM proteins.
- Biological screening assays for antimicrobial activity.
Main Results:
- Successful expression and purification of FEM proteins.
- Detailed biophysical characterization of FemB.
- Identification of a novel 1,2,3-triazole conjugated 1,3,4-oxadiazole hybrid molecule.
- The novel hybrid molecule demonstrated superior MRSA inhibition compared to oxacillin.
Conclusions:
- The study provides insights into FEM protein function in MRSA.
- A novel hybrid molecule targeting MRSA has been identified.
- This compound holds potential as a new therapeutic agent against MRSA infections.
