How genetic variation in protein-coding genes leads to human disease. Joe Marsh is Professor of Computational Protein Biology at the University of Edinburgh. He leads a research group focused on understanding how genetic variation perturbs protein structure, interactions, and function. His work sits at the interface of protein biophysics, human genetics, and computational biology, with a particular emphasis on interpreting disease-associated mutations. Joe Marsh Marsh Lab Website Lab members Dr Marcin Plech, Postdoctoral Research Fellow (joint with Grzegorz Kudla)Dr Benjamin Livesey, Postdoctoral Research FellowDr Lukas Gerasimavicius, Postdoctoral Research FellowDr Rolando Hernandez Trapero, Postdoctoral Research FellowDr Hasan Çubuk, Postdoctoral Research FellowAnkit Pathak, PhD studentVerena Obermüller, PhD student (joint with Hannah Long)Rowena Tao, PhD studentYifei Shang, PhD studentTesni Walsh, PhD studentAmber Minhas, PhD student (joint with Georg Kustatscher) Research The Marsh lab studies how genetic variation in protein-coding genes leads to human disease. The work spans three complementary areas: evaluating, benchmarking, and improving the interpretation and clinical utility of variant effect predictors; understanding and predicting the diverse molecular mechanisms by which disease-causing variants act, including loss-of-function, gain-of-function, dominant-negative, and hypomorphic effects; and using multiplexed assays of variant effect to systematically measure the functional consequences of large numbers of mutations. Together, these efforts aim to move variant interpretation beyond categorical classification toward a quantitative, mechanism-centred understanding of how sequence variation perturbs protein function. Selected publications Gerasimavicius L, Biddie SC & Marsh JA (2026) A structure-guided approach to non-coding variant evaluation for transcription factor binding using AlphaFold 3. Nucleic Acids Research 10.1093/nar/gkaf1417Badonyi M & Marsh JA (2025) Prevalence of loss-of-function, gain-of-function and dominant-negative mechanisms across genetic disease phenotypes. Nature Communications 10.1038/s41467-025-63234-3Livesey BJ & Marsh JA (2025) Variant effect predictor correlation with functional assays is reflective of clinical classification performance. Genome Biology26:104 10.1186/s13059-025-03575-wChillón-Pino D, Badonyi M, Semple CA & Marsh JA (2024) Protein structural context of cancer mutations reveals molecular mechanisms and candidate drivers. Cell Reports 43:114905 This article was published on 2026-04-23