PMID- 27805565 OWN - NLM STAT- MEDLINE DCOM- 20171124 LR - 20171128 IS - 2050-084X (Electronic) IS - 2050-084X (Linking) VI - 5 DP - 2016 Nov 2 TI - Computationally designed high specificity inhibitors delineate the roles of BCL2 family proteins in cancer. LID - 10.7554/eLife.20352 [doi] LID - e20352 [pii] AB - Many cancers overexpress one or more of the six human pro-survival BCL2 family proteins to evade apoptosis. To determine which BCL2 protein or proteins block apoptosis in different cancers, we computationally designed three-helix bundle protein inhibitors specific for each BCL2 pro-survival protein. Following in vitro optimization, each inhibitor binds its target with high picomolar to low nanomolar affinity and at least 300-fold specificity. Expression of the designed inhibitors in human cancer cell lines revealed unique dependencies on BCL2 proteins for survival which could not be inferred from other BCL2 profiling methods. Our results show that designed inhibitors can be generated for each member of a closely-knit protein family to probe the importance of specific protein-protein interactions in complex biological processes. FAU - Berger, Stephanie AU - Berger S AUID- ORCID: http://orcid.org/0000-0002-3738-5907 AD - Department of Bioengineering, University of Washington, Seattle, United States. FAU - Procko, Erik AU - Procko E AD - Department of Biochemistry, University of Washington, Seattle, United States. AD - Department of Biochemistry, University of Illinois, Urbana, United States. FAU - Margineantu, Daciana AU - Margineantu D AD - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, United States. AD - Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, United States. FAU - Lee, Erinna F AU - Lee EF AD - Department of Chemistry and Physics, LaTrobe Institute for Molecular Science, Melbourne, Australia. AD - Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Australia. AD - School of Cancer Medicine, La Trobe University, Melbourne, Australia. AD - The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia. AD - Department of Medical Biology, University of Melbourne, Parkville, Australia. FAU - Shen, Betty W AU - Shen BW AD - Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, United States. FAU - Zelter, Alex AU - Zelter A AD - Department of Biochemistry, University of Washington, Seattle, United States. FAU - Silva, Daniel-Adriano AU - Silva DA AD - Department of Biochemistry, University of Washington, Seattle, United States. AD - Institute for Protein Design, University of Washington, Seattle, United States. FAU - Chawla, Kusum AU - Chawla K AD - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, United States. AD - Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, United States. FAU - Herold, Marco J AU - Herold MJ AD - The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia. AD - Department of Medical Biology, University of Melbourne, Parkville, Australia. FAU - Garnier, Jean-Marc AU - Garnier JM AD - The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia. AD - Department of Medical Biology, University of Melbourne, Parkville, Australia. FAU - Johnson, Richard AU - Johnson R AD - Department of Genome Sciences, University of Washington, Seattle, United States. FAU - MacCoss, Michael J AU - MacCoss MJ AD - Department of Genome Sciences, University of Washington, Seattle, United States. FAU - Lessene, Guillaume AU - Lessene G AUID- ORCID: http://orcid.org/0000-0002-1193-8147 AD - The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia. AD - Department of Medical Biology, University of Melbourne, Parkville, Australia. AD - Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Australia. FAU - Davis, Trisha N AU - Davis TN AUID- ORCID: http://orcid.org/0000-0003-4797-3152 AD - Department of Biochemistry, University of Washington, Seattle, United States. FAU - Stayton, Patrick S AU - Stayton PS AD - Department of Bioengineering, University of Washington, Seattle, United States. FAU - Stoddard, Barry L AU - Stoddard BL AD - Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, United States. FAU - Fairlie, W Douglas AU - Fairlie WD AD - Department of Chemistry and Physics, LaTrobe Institute for Molecular Science, Melbourne, Australia. AD - Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Australia. AD - School of Cancer Medicine, La Trobe University, Melbourne, Australia. AD - The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia. AD - Department of Medical Biology, University of Melbourne, Parkville, Australia. FAU - Hockenbery, David M AU - Hockenbery DM AD - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, United States. AD - Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, United States. FAU - Baker, David AU - Baker D AUID- ORCID: http://orcid.org/0000-0001-7896-6217 AD - Department of Biochemistry, University of Washington, Seattle, United States. AD - Institute for Protein Design, University of Washington, Seattle, United States. AD - Howard Hughes Medical Institute, University of Washington, Seattle, United States. LA - eng GR - 15-0025/Worldwide Cancer Research/United Kingdom GR - P41 GM103533/GM/NIGMS NIH HHS/United States GR - R01 CA158921/CA/NCI NIH HHS/United States GR - R01 GM115545/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20161102 PL - England TA - Elife JT - eLife JID - 101579614 RN - 0 (Proto-Oncogene Proteins c-bcl-2) SB - IM MH - Apoptosis/genetics MH - Computational Biology MH - Gene Expression Regulation, Neoplastic/*genetics MH - Humans MH - Neoplasms/*genetics/pathology MH - Protein Structure, Secondary MH - Proto-Oncogene Proteins c-bcl-2/chemistry/*genetics PMC - PMC5127641 OTO - NOTNLM OT - Bcl-2 OT - cancer OT - cancer biology OT - computational biology OT - computational protein design OT - human OT - systems biology COIS- The authors declare that no competing interests exist. EDAT- 2016/11/03 06:00 MHDA- 2017/11/29 06:00 CRDT- 2016/11/03 06:00 PHST- 2016/08/04 00:00 [received] PHST- 2016/11/01 00:00 [accepted] PHST- 2016/11/03 06:00 [pubmed] PHST- 2017/11/29 06:00 [medline] PHST- 2016/11/03 06:00 [entrez] AID - 10.7554/eLife.20352 [doi] PST - epublish SO - Elife. 2016 Nov 2;5. doi: 10.7554/eLife.20352.