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 "excerpt": "Andrei A. Korostelev is a Russian-born structural biologist who studies the ribosome and translation fidelity as a professor at UMass Chan Medical School in Worcester, Massachusetts.",
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 "markdown": "# А.A. Коростелев\n\n**Andrei A. Korostelev** (Андрей А. Коростелев) is a structural biologist who studies the ribosome, the molecular machine that translates mRNA into protein. He is a Professor in the RNA Therapeutics Institute at [UMass Chan Medical School](https://www.edgepedia.org/umass-chan-medical-school) in [Worcester, Massachusetts](https://www.edgepedia.org/worcester-massachusetts), and, according to his ORCID record, is known for structural work on translation fidelity, termination, and stress responses.<sup>[1](https://profiles.umassmed.edu/display/130199)</sup><sup> • </sup><sup>[2](https://orcid.org/0000-0003-1588-717X)</sup> \n\n| Fact | Detail |\n|---|---|\n| Current position | Professor, RNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA<sup>[1](https://profiles.umassmed.edu/display/130199)</sup> |\n| Field | Ribosome structural biology; translation fidelity and termination |\n| Ph.D. | Chemistry and Biochemistry, Florida State University, 1998–2003, with Michael S. Chapman<sup>[2](https://orcid.org/0000-0003-1588-717X)</sup> |\n| Signature work | Crystal structure of a 70S ribosome–tRNA complex (Cell, 2006); time-resolved cryo-EM of EF-Tu•GTP and tRNA proofreading (Nature, 2020); angiogenin activation by the ribosome (Nature, 2024)<sup>[1](https://profiles.umassmed.edu/display/130199)</sup><sup> • </sup><sup>[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC7483604/)</sup><sup> • </sup><sup>[4](https://www.nature.com/articles/s41586-024-07508-8)</sup> |\n| Major honors | Earl and Thressa Stadtman Scholar Award (ASBMB, 2018); RNA Society Early Career Award (2018)<sup>[5](https://www.asbmb.org/asbmb-today/people/040118/korostelev-wins-asbmb-stadtman-scholar-award)</sup> |\n| Principal funding | NIH R35GM127094 \"Translational Control: Discovery and Mechanisms\", $3,226,555, 2018–2028<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> |\n\n## Education and career\n\nAccording to his CV, Korostelev earned B.Sc. and M.Sc. degrees summa cum laude in Chemistry at [Moscow State University](https://www.edgepedia.org/moscow-state-university) (1992–1997), with a thesis on penicillin acylase binding sites advised by Professor Vitas Švedas.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> He then moved to the United States for doctoral study, receiving a Ph.D. in Chemistry and [Biochemistry](https://www.edgepedia.org/biochemistry) from [Florida State University](https://www.edgepedia.org/florida-state-university) (1998–2003) with the thesis \"Improving the methods of macromolecular structure determination\" under Professor Michael S. Chapman.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup><sup> • </sup><sup>[2](https://orcid.org/0000-0003-1588-717X)</sup> In Chapman's lab he developed computational methods for analyzing X-ray crystallography and cryo-EM images that became pivotal for high-resolution atomic models of ribosomes.<sup>[5](https://www.asbmb.org/asbmb-today/people/040118/korostelev-wins-asbmb-stadtman-scholar-award)</sup>\n\nHe completed postdoctoral research with Michael Chapman at Florida State (2003–2004) and then with [Harry F. Noller](https://www.edgepedia.org/harry-f-noller) in MCD Biology at the [University of California, Santa Cruz](https://www.edgepedia.org/university-of-california-santa-cruz) (2004–2010).<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup><sup> • </sup><sup>[2](https://orcid.org/0000-0003-1588-717X)</sup> With Noller he produced high-resolution crystallographic structures that altered understanding of translation termination.<sup>[5](https://www.asbmb.org/asbmb-today/people/040118/korostelev-wins-asbmb-stadtman-scholar-award)</sup>\n\nHe joined the UMass faculty in 2010 as Assistant Professor (2010–2015), was promoted to Associate Professor (2015–2021), and has been Professor in the RNA Therapeutics Institute since 2021.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup>\n\n## Representative work\n\nHis 2006 Cell paper, published with Noller's group, reported the crystal structure of a 70S ribosome–tRNA complex, revealing functional interactions and rearrangements between the ribosome and its tRNA substrates; it appeared in Cell 126(6):1065–1077 (PMID 16962654).<sup>[1](https://profiles.umassmed.edu/display/130199)</sup>\n\nA 2017 Nature study used ensemble single-particle cryo-EM with improved FREALIGN classification to visualize binding of cognate and near-cognate tRNA ternary complexes to 70S ribosomes, presenting high-resolution structural ensembles that elucidated the mechanism of translation fidelity.<sup>[7](https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC5657493&blobtype=pdf)</sup>\n\nHis 2020 Nature paper used time-resolved cryo-EM to reveal 33 structural states following aminoacyl-tRNA delivery by EF-Tu•GTP. Instead of locking cognate tRNA upon initial recognition, the ribosomal decoding center dynamically monitors codon-anticodon interactions both before and after GTP hydrolysis. After GTP hydrolysis, the 30S subunit locks cognate tRNA and rotates, enabling accommodation into the peptidyl transferase center, whereas near-cognate tRNA fails to be locked and dissociates during both initial selection and proofreading.<sup>[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC7483604/)</sup>\n\nHis 2024 Nature paper showed that the cytosolic 80S ribosome is the activator of the RNase angiogenin. Ribosome binding stabilizes angiogenin's C-terminal tail in a catalytically active RNase-A-like conformation, making the enzyme several orders of magnitude more efficient in tRNA cleavage; angiogenin is activated by ribosomes with a vacant A site, whose abundance increases during cellular stress. The disease-associated mutation K54E disrupts ribosome binding and activation.<sup>[4](https://www.nature.com/articles/s41586-024-07508-8)</sup>\n\n## Research program and methods\n\nThe lab's stated focus is accuracy of translation, the ribosome as a cellular stress sensor, and dysregulated translation in disease, using ensemble and time-resolved cryo-EM alongside [X-ray crystallography](https://www.edgepedia.org/x-ray-crystallography) and biochemistry.<sup>[2](https://orcid.org/0000-0003-1588-717X)</sup><sup> • </sup><sup>[1](https://profiles.umassmed.edu/display/130199)</sup> It studies how ribosomes interact with disease-related molecules such as viral mRNA and peptides involved in amyotrophic lateral sclerosis and frontotemporal dementia.<sup>[2](https://orcid.org/0000-0003-1588-717X)</sup> [Translation](https://www.edgepedia.org/translation) accuracy is biologically significant: decoding errors run only 10⁻³ to 10⁻⁵ per codon, achieved through two-step tRNA selection involving initial decoding and kinetic proofreading.<sup>[8](https://doi.org/10.1146/annurev-biochem-071921-122857)</sup>\n\nSince 2014 he has co-founded and co-chaired the advisory board of the Massachusetts High-Resolution Cryo-EM facility at UMass Medical School, equipped with Titan Krios and Talos Arctica microscopes.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup>\n\n## Funding, honors and collaborations\n\nHis laboratory is supported by NIH R35GM127094 \"Translational Control: Discovery and Mechanisms\" ($3,226,555, 50% PI effort, 2018–2028), R01GM107465 on translation termination ($1,289,752, 2015–2018), and R01GM106105 on stress responses mediated by stalled translation ($1,589,192, 2013–2018).<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup>\n\nDisease-directed awards include an NIH/NIMH R21 MH134127 on FMRP and Fragile X Syndrome (about $180,000, 2023–2025) and an NIH/NIA R21 AG084170 on C9ORF72-associated frontotemporal dementia and ALS (about $220,000, 2023–2025), plus a [Simons Foundation](https://www.edgepedia.org/simons-foundation) award (January 2025, about $50,000) for analysis of FMRP-ribosome interactions and a UMass Chan BRIDGE Fund grant (about $220,000 direct, 2023–2025) on mRNA-specific readthrough of nonsense codons, according to Korostelev's curriculum vitae.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> Earlier work on premature termination in cystic fibrosis was funded by a Cystic Fibrosis Foundation award (about $277,000, 2020–2023), and a 2019 sponsored research agreement with PTC Therapeutics (about $110,000) studied mechanisms of stop-codon read-through compounds including ataluren.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> NSF award #1817338, \"Structure and mechanism of an exceptionally powerful molecular motor\", was made to the University of Massachusetts Medical School, amended through July 2021.<sup>[9](https://www.nsf.gov/awardsearch/showAward?AWD_ID=1817338&HistoricalAwards=false)</sup>\n\nIn 2018 he received the Earl and Thressa Stadtman Scholar Award from ASBMB and the RNA Society Early Career Award, and was an HHMI Investigator Program finalist.<sup>[5](https://www.asbmb.org/asbmb-today/people/040118/korostelev-wins-asbmb-stadtman-scholar-award)</sup><sup> • </sup><sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> Earlier honors include a Soros Academic Fellowship (1994–1995) and the I.V. Berezin Young Scientist Award (1996–1997).<sup>[1](https://profiles.umassmed.edu/display/130199)</sup> He served on the NIH NIGMS review panel MSFC (2015–2019, 2024) and chaired the RNA Society Nominating Committee (2019–2021).<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup>\n\n## Recent developments\n\nThe 2024 angiogenin mechanism paper established the ribosome as the enzyme's activator and tied the disease-linked K54E mutation to failed ribosome binding.<sup>[4](https://www.nature.com/articles/s41586-024-07508-8)</sup> [Publication](https://www.edgepedia.org/publication) output has remained high, with 6 papers in 2020, 6 in 2024, 8 in 2025, and 4 in 2026 listed on his profile.<sup>[1](https://profiles.umassmed.edu/display/130199)</sup> According to Korostelev's CV, the Fragile X, C9ORF72, Simons, and BRIDGE awards all run through 2025, extending the lab's reach into neurodegeneration and fragile-X-linked translation defects.<sup>[6](https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx)</sup> \n\n## References\n\n1. Andrei A Korostelev PhD, UMass Profiles faculty profile. https://profiles.umassmed.edu/display/130199\n2. Andrei Korostelev (0000-0003-1588-717X), ORCID record. https://orcid.org/0000-0003-1588-717X\n3. Cryo-EM of elongating ribosome with EF-Tu•GTP elucidates tRNA proofreading (Nature, 2020). https://pmc.ncbi.nlm.nih.gov/articles/PMC7483604/\n4. Structural mechanism of angiogenin activation by the ribosome (Nature, 2024). https://www.nature.com/articles/s41586-024-07508-8\n5. Korostelev receives Earl and Thressa Stadtman Young Scholar Award (ASBMB Today, 2018). https://www.asbmb.org/asbmb-today/people/040118/korostelev-wins-asbmb-stadtman-scholar-award\n6. Andrei A. Korostelev, Ph.D., CV (January 2025), RNA Therapeutics Institute, UMass Chan Medical School. https://www.umassmed.edu/link/05ab05cd25234d15ae4f90f835e3b2fa.aspx\n7. Ensemble cryo-EM elucidates the mechanism of translation fidelity (Nature, 2017). https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC5657493&blobtype=pdf\n8. The Structural Dynamics of Translation (Annual Review of Biochemistry). https://doi.org/10.1146/annurev-biochem-071921-122857\n9. NSF Award #1817338. https://www.nsf.gov/awardsearch/showAward?AWD_ID=1817338&HistoricalAwards=false\n\n---\n*Topic: Encyclopedia › Life and health › Life and health scientists › Life scientists › Researchers in structural biology, biochemistry, and biophysics › Translation and ribosome structure*\n\n*Initially written Sep 21, 2026 · Reviewed: Sep 25, 2026 · Edited: Sep 25, 2026; Oct 11, 2026; Oct 15, 2026 · Last review: Sep 25, 2026*\n\n*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*\n\nLicense: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license\n",
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