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PBRM1 variants exist in ~40% of clear cell renal cell carcinoma (ccRCC) cases. PBRM1 loss correlates with improved responses to antiangiogenics and immune checkpoint blockade, which are the standard of care for ccRCC therapy. Missense variants cluster within PBRM1 bromodomains and are present in 16% of ccRCC cases, with unknown impacts on therapeutic response. Since in\u2010depth biophysical and cellular testing of the hundreds of PBRM1 missense variants reported in ccRCC and other cancer types is intractable, computational approaches can provide actionable variant impact assessments. We employed an integrated structural genomics analysis at the levels of protein sequence (2D), structure (3D), and molecular dynamics (4D) to evaluate the effects of all reported ccRCC\u2010associated missense variants in the second and fourth bromodomains of PBRM1 (33 total) on molecular fitness (i.e., stability, structural integrity, and ligand binding). We also evaluated the concordance between molecular fitness and biophysical parameters of variant structural integrity (differential scanning fluorimetry, circular dichroism, and\n                    <jats:sup>1<\/jats:sup>\n                    H\u2010NMR spectroscopy) and ligand binding (AlphaScreen and electrophoretic mobility shift assays). Integrated molecular fitness scores correlated with measures of acetylated histone binding, while 3D and integrated molecular fitness scores correlated with measures of thermal stability. This integrated structural genomics analysis accelerates mechanistic understanding of how ccRCC missense variants impact PBRM1 bromodomain structure and function. This knowledge supports future studies correlating specific missense variants with PBRM1 tumor\u2010suppressive functions and patient responses to antiangiogenics and immune checkpoint blockade to inform ccRCC personalized medicine approaches.\n                  <\/jats:p>","DOI":"10.1155\/humu\/9214621","type":"journal-article","created":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T08:37:27Z","timestamp":1785919047000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Structural Genomics Defines PBRM1 Bromodomain Variant Function in ccRCC"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6270-1716","authenticated-orcid":false,"given":"Karina L.","family":"Bursch","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0716-2403","authenticated-orcid":false,"given":"Salom\u00e3o D.","family":"Jorge","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Audrey E.","family":"Catlin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2595-6714","authenticated-orcid":false,"given":"Raymundo","family":"Nu\u00f1ez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-6568-8938","authenticated-orcid":false,"given":"Michael D.","family":"LeClaire","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacob","family":"Licklider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1640-6780","authenticated-orcid":false,"given":"Raul A.","family":"Urrutia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6330-2768","authenticated-orcid":false,"given":"Brian C.","family":"Smith","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,5]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.14740\/wjon1279"},{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.celrep.2018.03.075"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.3233\/CBM-2011-0176"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ctrv.2018.07.009"},{"key":"e_1_2_11_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41585-018-0052-7"},{"key":"e_1_2_11_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eururo.2012.09.005"},{"key":"e_1_2_11_7_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.240208597"},{"key":"e_1_2_11_8_2","doi-asserted-by":"publisher","DOI":"10.1038\/414924a"},{"key":"e_1_2_11_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.biochi.2008.10.019"},{"key":"e_1_2_11_10_2","doi-asserted-by":"crossref","first-page":"5370","DOI":"10.1002\/j.1460-2075.1996.tb00921.x","article-title":"Purification and Biochemical Heterogeneity of the Mammalian SWI-SNF Complex","volume":"15","author":"Wang W.","year":"1996","journal-title":"EMBO Journal"},{"key":"e_1_2_11_11_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature09639"},{"key":"e_1_2_11_12_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gky1015"},{"key":"e_1_2_11_13_2","doi-asserted-by":"publisher","DOI":"10.1158\/2159-8290.CD-12-0095"},{"key":"e_1_2_11_14_2","doi-asserted-by":"crossref","first-page":"2339","DOI":"10.1101\/gad.13.18.2339","article-title":"ATP-Dependent Remodeling and Acetylation as Regulators of Chromatin Fluidity","volume":"13","author":"Kingston R. 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