+検索条件
-Structure paper
タイトル | Structures and pH-dependent dimerization of the sevenless receptor tyrosine kinase. |
---|---|
ジャーナル・号・ページ | Mol Cell, Vol. 84, Issue 23, Page 4677-44690.e6, Year 2024 |
掲載日 | 2024年12月5日 |
![]() | Gabriele Cerutti / Ronald Arias / Fabiana Bahna / Seetha Mannepalli / Phinikoula S Katsamba / Goran Ahlsen / Brian Kloss / Renato Bruni / Andrew Tomlinson / Lawrence Shapiro / ![]() |
PubMed 要旨 | Sevenless (Sev) is a Drosophila receptor tyrosine kinase (RTK) required for the specification of the R7 photoreceptor. It is cleaved into α and β subunits and binds the ectodomain of the G-protein- ...Sevenless (Sev) is a Drosophila receptor tyrosine kinase (RTK) required for the specification of the R7 photoreceptor. It is cleaved into α and β subunits and binds the ectodomain of the G-protein-coupled receptor bride of sevenless (Boss). Previous work showed that the Boss ectodomain could bind but not activate Sev; rather, the whole seven-pass transmembrane Boss was required. Here, we show that Sev does not need to be cleaved to function and that a single-pass transmembrane form of Boss activates Sev. We use cryo-electron microscopy and biophysical methods to determine the structural basis of ligand binding and pH-dependent dimerization of Sev, and we discuss the implications in the process of Sev activation. The Sev human homolog, receptor oncogene from sarcoma 1 (ROS1), is associated with oncogenic transformations, and we discuss their structural similarities. |
![]() | ![]() ![]() ![]() |
手法 | EM (単粒子) |
解像度 | 2.78 - 4.07 Å |
構造データ | EMDB-44502, PDB-9bfp: EMDB-44503, PDB-9bfq: EMDB-44504, PDB-9bfr: EMDB-44505, PDB-9bfs: EMDB-44507, PDB-9bfu: |
化合物 | ![]() ChemComp-NAG: |
由来 |
|
![]() | SIGNALING PROTEIN / sevenless / receptor tyrosine kinase / RTK / drosophila / eye development / vision / photoreceptor / ROS1 / bride of sevenless / boss / GPCR / G-protein coupled receptor / glucose metabolism |