Alexander Mankin
Distinguished Professor, Pharmaceutical Sciences and Center for Biomolecular Sciences
Contact
Address:
900 S. Ashland Ave, Rm. 3052, Chicago, IL
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About Heading link
Overview:
The research in Mankin/Vázquez-Laslop lab is aimed on understanding fundamental mechanisms of protein synthesis and antibiotic action.
The ribosome has the ability to monitor the sequence of the polypeptides it makes. It can recognize and respond to specific nascent peptide sequences. Functional interactions between the ribosome and the nascent peptide are used for the regulation of gene expression and may also facilitate protein folding and targeting. We are investigating the molecular mechanisms of nascent peptide-sensing by the ribosome and studying the ribosomal response to regulatory sequences in the nascent peptides.
Many antibiotics interfere with bacterial growth by inhibiting protein synthesis. However, the mechanisms of action of many antibiotics are unknown or unclear. We have recently found that many ribosome-targeting antibiotics inhibit protein synthesis in a context-specific manner arresting translation only at specific mRNA sites. We are exploring what distinguishes the sites of preferential drug action and what cryptic features of translation could be exposed context specificity of antibiotics.
The ability to modify and expand the ribosome functionality is one of the main tasks of synthetic biology. We are using the current knowledge of the ribosome structure and function to engineer altered ribosomal RNA designs to enable properties unattainable for the ‘native’ ribosome.
Research Interests:
Fundamental mechanisms of protein synthesis. Structure and function of the ribosome. Ribosome engineering. Mechanisms of antibiotic action. Mechanisms of resistance to antibiotics.
Teaching Statement:
Mechanisms of antibiotic action and resistance.
Bacterial genomics in the age of next-generation DNA sequencing.
Mechanisms of protein synthesis and gene expression.
Approaches for studying gene expression and mechanisms of antibiotic action.
Teaching and Supervision Heading link
PSCI Ph.D. Thesis Research (PSCI 599), 8/22/2022 – 12/2/2022
Cell Biology (GEMS 503), 8/22/2022 – 12/2/2022
Molecular Biology (GEMS 502), 8/22/2022 – 12/2/2022
Biochemistry (GEMS 501), 8/22/2022 – 12/2/2022
PSCI Ph.D. Thesis Research (PSCI 599), 5/16/2022 – 7/21/2022
PSCI Ph.D. Thesis Research (PSCI 599), 1/10/2022 – 4/29/2022
PDAT 6: Infectious Diseases (PHAR 506), 1/10/2022 – 4/29/2022
PDAT 6: Infectious Diseases (PHAR 506), 1/10/2022 – 4/29/2022
Topics in Biopahrmaceutical Sciences (BPS425), 10/4/2021 – Present
Selected Grants
Advancing ribosome-targeting antibacterial peptides with a unique mechanism of action, NIH/NIAID., 2/8/2022 - 1/31/2027, Obligated Amount: $454250; Anticipated Amount: $3299182
Advancing ribosome-targeting antibacterial peptides with a unique mechanism of action, NIH/NIAID., 2/8/2022 - 1/31/2027, Obligated Amount: $454250; Anticipated Amount: $3299182
Advancing ribosome-targeting antibacterial peptides with a unique mechanism of action, NIH/NIAID., 7/16/2021 - 2/7/2022, Obligated Amount: $730027; Anticipated Amount: $730027
Advancing ribosome-targeting antibacterial peptides with a unique mechanism of action, NIH/NIAID., 7/16/2021 - 2/7/2022, Obligated Amount: $730027; Anticipated Amount: $730027
Mode of action of sarecycline on the bacterial ribosome, Yale University., 5/1/2020 - 12/21/2021, Obligated Amount: $20846; Anticipated Amount: $98703
Mode of action of sarecycline on the bacterial ribosome, Yale University., 5/1/2020 - 12/21/2021, Obligated Amount: $20846; Anticipated Amount: $98703
Repurposing antibacterial peptides for stimulating premature stop codons, Cystic Fibrosis Foundation., 4/1/2020 - 3/31/2023, Obligated Amount: $168000; Anticipated Amount: $168000
Control of translation by the nascent protein after its full synthesis and release, National Science Foundation., 3/15/2020 - 2/29/2024, Obligated Amount: $1000000; Anticipated Amount: $1000000
Control of translation by the nascent protein after its full synthesis and release, Directorate for Biological Sciences., 3/15/2020 - 2/29/2024, Obligated Amount: $1000000; No Anticipated Amount Set
Selected Publications
Mangano, K, Marks, J, Klepacki, D, Saha, CK, Atkinson, GC, Vázquez-Laslop, N, Mankin, AS. (2022). Context-based sensing of orthosomycin antibiotics by the translating ribosome. Nature Chemical Biology, 18, (11), 1277-1286. doi:10.1038/s41589-022-01138-9.
★ Vazquez-Laslop, N, Sharma, CM, Mankin, A, Buskirk, AR. (2022). Identifying Small Open Reading Frames in Prokaryotes with Ribosome Profiling. Journal of Bacteriology, 204, (1). doi:10.1128/JB.00294-21.
★ Svetlov, MS, Koller, TO, Meydan, S, Shankar, V, Klepacki, D, Polacek, N, Guydosh, NR, Vázquez-Laslop, N, Wilson, DN, Mankin, AS. (2021). Context-specific action of macrolide antibiotics on the eukaryotic ribosome. Nature Communications, 12, (1). doi:10.1038/s41467-021-23068-1.
★ Svetlov, MS, Syroegin, EA, Aleksandrova, EV, Atkinson, GC, Gregory, ST, Mankin, AS, Polikanov, YS. (2021). Structure of Erm-modified 70S ribosome reveals the mechanism of macrolide resistance. Nature Chemical Biology, 17, (4), 412-420. doi:10.1038/s41589-020-00715-0.
★ Baliga, C, Brown, TJ, Florin, T, Colon, S, Shah, V, Skowron, KJ, Kefi, A, Szal, T, Klepacki, D, Moore, TW, Vázquez-Laslop, N, Mankin, AS. (2021). Charting the sequence-activity landscape of peptide inhibitors of translation termination. Proceedings of the National Academy of Sciences of the United States of America, 118, (10). doi:10.1073/pnas.2026465118.
★ Mangano, K, Florin, T, Shao, X, Klepacki, D, Chelysheva, I, Ignatova, Z, Gao, Y, Mankin, AS, Vázquez-Laslop, N. (2020). Genome-wide effects of the antimicrobial peptide apidaecin on translation termination in bacteria. eLife, 9, 1-24. doi:10.7554/eLife.62655.
★ Meydan, S, Marks, J, Klepacki, D, Sharma, V, Baranov, PV, Firth, AE, Margus, T, Kefi, A, Vázquez-Laslop, N, Mankin, AS. (2019). Retapamulin-Assisted Ribosome Profiling Reveals the Alternative Bacterial Proteome. Molecular Cell, 74, (3), 481-493.e6. doi:10.1016/j.molcel.2019.02.017.
★ Meydan, S, Vázquez-Laslop, N, Mankin, AS. (2018). Genes within genes in bacterial genomes. Microbiology Spectrum, 6, (4), 1-22. doi:10.1128/MICROBIOLSPEC.RWR-0020-2018.
★ Vázquez-Laslop, N, Mankin, AS. (2014). Triggering peptide-dependent translation arrest by small molecules: Ribosome stalling modulated by antibiotics. Regulatory Nascent Polypeptides. (pp. 165-186). doi:10.1007/978-4-431-55052-5_10.
Professional Leadership
SURF students conference judge, University of Illinois at Chicago, 8/6/2021 - Present
Interview with Dr. Kochlar, Science historian (phage therapy), University of Illinois at Chicago, 11/19/2019 - Present
Hosting students and postdocs from Northwestern U (Jewett lab) to train in ribosome techniques, Northwestern University, 10/1/2019 - Present
Hosting joint lab meeting with Dr. Wolfe (Loyola University) to discuss their researh, Loyola University Chicago, 7/3/2019 - Present
Education
Degrees:
PhD, Moscow State University, Russian Federation
DSci, Moscow State University, Russian Federation