Biography
PhD Scholar at IIT Roorkee
Antimicrobial resistance (AMR) has become a formidable global health crisis, with the escalating threat of antibiotic resistance primarily driven by the spread of beta-lactamases. A striking example is KPC (Klebsiella pneumoniae carbapenemase), first identified in drug-resistant Klebsiella pneumoniae, which possesses the alarming ability to cleave nearly all beta-lactams, including combinational beta-lactams and beta-lactamase inhibitors, due to active-site insertions, including Ceftazidime-Avibactam. To unravel the mechanistic intricacies of these enzymes, we aim to conduct a comprehensive study using macromolecular crystallography, biophysical, biochemical, biological, and MD simulation methods.
Academic Background
2021-Present PhD Scholar at IIT Roorkee
2019-2021 M.Sc at Midnapore College Autonomous, Midnapore, West Bengal
2016-2019 B.Sc at Midnapore College Autonomous, Midnapore, West Bengal
Selected Publications
- Karan R, Dhankhar K, Singh A, Panda SK, Sen T, Sen Gupta PS, Hazra S. Decoding Ceftazidime-Avibactam Resistance in Newly Identified Klebsiella pneumoniae Carbapenemase (KPC) 107 Variant by Modulating the Active Site Environment. ACS Infectious Diseases. 2025 Dec 19. https://doi.org/10.1021/acsinfecdis.5c00288
- Karan R, Pyne A, Panda SK, Sen Gupta PS, Hazra S. Mechanistic insights into ESBL activity of subclass A2 in Class A beta-lactamase revealing a distinct strategy towards conferring drug resistance. Journal of Biomolecular Structure and Dynamics. 2025 Sep 19:1-22. https://doi.org/10.1080/07391102.2025.2563080
- Baidya, S., Dhankhar, K., Karan, R., Hazra, M., Adhikary, R., Sen, T., & Hazra, S. Structural and functional characterization of an active site‐influencing variant (IMP‐1‐F218Y) in IMP‐1 metallo‐β‐lactamase. The FEBS Journal. https://doi.org/10.1111/febs.70474
Posters & Conferences
- 49th & 50th National Seminars on Crystallography (2022, 2023)
- National Conference on Antimicrobial Resistance at SRHU, Dehradun (2024)
- Sagamore XX at Shiv Nadar University, Noida, Delhi (2024)
- Global Scientific Conference at Indian Institute of Technology Bombay (2025)
- ICABSB at Indian Institute of Technology Roorkee (2025)
- International Conference on Superbug Summit at Chanakya University, Bengaluru (2026)
