Crystal Structure of DIAP1-BIR2/GRIMCrystal Structure of DIAP1-BIR2/GRIM
Structural highlights
1jd5 is a 2 chain structure with sequence from Drosophila melanogaster. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
DIAP1_DROME Anti-apoptotic protein which functions as a caspase regulator, using its E3 ubiquitin-protein ligase activity to smother caspase activity. Binds, ubiquitinates and inactivates initiator caspase Dronc, and effector caspases Drice and Dcp-1. Acts as a Nedd8-E3 ubiquitin-protein ligase for Drice. Suppresses apoptosis by targeting the apoptosome for ubiquitination and inactivation. Plays an important role in cell motility. Overexpression suppresses rpr and hid-dependent cell death in the eye. Interaction of Diap1 with Dronc is required to suppress Dronc-mediated cell death through Diap1-mediated ubiquitination of Dronc. Acts as a positive regulator of Wnt signaling.[1][2][3][4][5][6]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
↑Chai J, Yan N, Huh JR, Wu JW, Li W, Hay BA, Shi Y. Molecular mechanism of Reaper-Grim-Hid-mediated suppression of DIAP1-dependent Dronc ubiquitination. Nat Struct Biol. 2003 Nov;10(11):892-8. Epub 2003 Sep 28. PMID:14517550 doi:10.1038/nsb989
↑Igaki T, Suzuki Y, Tokushige N, Aonuma H, Takahashi R, Miura M. Evolution of mitochondrial cell death pathway: Proapoptotic role of HtrA2/Omi in Drosophila. Biochem Biophys Res Commun. 2007 May 18;356(4):993-7. Epub 2007 Mar 26. PMID:17397804 doi:10.1016/j.bbrc.2007.03.079
↑Khan FS, Fujioka M, Datta P, Fernandes-Alnemri T, Jaynes JB, Alnemri ES. The interaction of DIAP1 with dOmi/HtrA2 regulates cell death in Drosophila. Cell Death Differ. 2008 Jun;15(6):1073-83. doi: 10.1038/cdd.2008.19. Epub 2008, Feb 15. PMID:18259196 doi:10.1038/cdd.2008.19
↑Broemer M, Tenev T, Rigbolt KT, Hempel S, Blagoev B, Silke J, Ditzel M, Meier P. Systematic in vivo RNAi analysis identifies IAPs as NEDD8-E3 ligases. Mol Cell. 2010 Dec 10;40(5):810-22. doi: 10.1016/j.molcel.2010.11.011. PMID:21145488 doi:10.1016/j.molcel.2010.11.011
↑Hanson AJ, Wallace HA, Freeman TJ, Beauchamp RD, Lee LA, Lee E. XIAP monoubiquitylates Groucho/TLE to promote canonical Wnt signaling. Mol Cell. 2012 Mar 9;45(5):619-28. doi: 10.1016/j.molcel.2011.12.032. Epub 2012, Feb 1. PMID:22304967 doi:10.1016/j.molcel.2011.12.032
↑Hay BA, Wassarman DA, Rubin GM. Drosophila homologs of baculovirus inhibitor of apoptosis proteins function to block cell death. Cell. 1995 Dec 29;83(7):1253-62. PMID:8548811
