Frank Filipp, Virgili Geneviève, Sonenberg Nahum, Nagar Bhushan
Department of Biochemistry, McGill University, Montréal, Québec, Canada.
Acta Crystallogr Sect F Struct Biol Cryst Commun. 2010 Jan 1;66(Pt 1):15-9. doi: 10.1107/S1744309109044315. Epub 2009 Dec 25.
Death-associated protein 5 (DAP5) is a member of the eIF4G family of scaffolding proteins that mediate cap-independent translation initiation by recruiting the translational machinery to internal ribosomal entry sites (IRESs) on mRNA. The MIF4G domain of DAP5 directly interacts with the eukaryotic initiation factors eIF4A and eIF3 and enhances the translation of several viral and cellular IRESs. Here, the crystallization and preliminary X-ray diffraction analysis of the MIF4G domain of DAP5 is presented.
死亡相关蛋白5(DAP5)是支架蛋白eIF4G家族的成员,通过将翻译机制募集到mRNA上的内部核糖体进入位点(IRES)来介导不依赖帽的翻译起始。DAP5的MIF4G结构域直接与真核起始因子eIF4A和eIF3相互作用,并增强几种病毒和细胞IRES的翻译。本文介绍了DAP5的MIF4G结构域的结晶及初步X射线衍射分析。