4GOE
Crystal structure of the SGTA homodimerization domain with a covalent modification of a single C38
4GOE の概要
エントリーDOI | 10.2210/pdb4goe/pdb |
関連するPDBエントリー | 4GOC 4GOD 4GOF |
分子名称 | Small glutamine-rich tetratricopeptide repeat-containing protein alpha, BETA-MERCAPTOETHANOL, CHLORIDE ION, ... (4 entities in total) |
機能のキーワード | four-helix bundle, protein-protein interaction, ubl4a ubiquitin-like domain, protein binding |
由来する生物種 | Homo sapiens (human) |
タンパク質・核酸の鎖数 | 2 |
化学式量合計 | 11590.60 |
構造登録者 | Chartron, J.W.,VanderVelde, D.G.,Clemons Jr., W.M. (登録日: 2012-08-19, 公開日: 2012-11-21, 最終更新日: 2024-03-13) |
主引用文献 | Chartron, J.W.,Vandervelde, D.G.,Clemons, W.M. Structures of the Sgt2/SGTA Dimerization Domain with the Get5/UBL4A UBL Domain Reveal an Interaction that Forms a Conserved Dynamic Interface. Cell Rep, 2:1620-1632, 2012 Cited by PubMed Abstract: In the cytoplasm, the correct delivery of membrane proteins is an essential and highly regulated process. The posttranslational targeting of the important tail-anchor membrane (TA) proteins has recently been under intense investigation. A specialized pathway, called the guided entry of TA proteins (GET) pathway in yeast and the transmembrane domain recognition complex (TRC) pathway in vertebrates, recognizes endoplasmic-reticulum-targeted TA proteins and delivers them through a complex series of handoffs. An early step is the formation of a complex between Sgt2/SGTA, a cochaperone with a presumed ubiquitin-like-binding domain (UBD), and Get5/UBL4A, a ubiquitin-like domain (UBL)-containing protein. We structurally characterize this UBD/UBL interaction for both yeast and human proteins. This characterization is supported by biophysical studies that demonstrate that complex formation is mediated by electrostatics, generating an interface that has high-affinity with rapid kinetics. In total, this work provides a refined model of the interplay of Sgt2 homologs in TA targeting. PubMed: 23142665DOI: 10.1016/j.celrep.2012.10.010 主引用文献が同じPDBエントリー |
実験手法 | X-RAY DIFFRACTION (1.45 Å) |
構造検証レポート
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