7EEF

Crystal structure of EphA7 mutant G656E

7EEF の概要

• エントリーDOI: 10.2210/pdb7eef/pdb
• 分子名称: Ephrin type-A receptor 7 (2 entities in total)
• 機能のキーワード: kinase domain, mutant, membrane protein
• 由来する生物種: Homo sapiens (Human)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 34516.70

構造登録者

Chakraborty, S.,Varma, A.K. (登録日: 2021-03-18, 公開日: 2021-07-07, 最終更新日: 2023-11-29)

主引用文献

Chakraborty, S.,Varma, A.K.
Crystal structure of clinically reported mutations Gly656Arg, Gly656Glu and Asp751His identified in the kinase domain of EphA7.
Biochem.Biophys.Res.Commun., 568:62-67, 2021

PubMed Abstract: Erythropoietin producing hepatocellular (Eph) forms the largest family of receptor tyrosine kinases (RTK). As a family, Eph regulates physiological events such as cell-cell interaction, cell migration, and adhesion. The Kinase domain is the catalytic core of the Eph receptor and is highly conserved sequentially. EphA7 has been recently regarded as a cancer driver gene and comprises several clinically important mutations. Three of the EphA7 mutations Gly656Glu, Gly656Arg, and Asp751His, present in the kinase domain, are predicted to be highly pathogenic. Furthermore, Gly656Glu and Gly656Arg are reported to be hotspot mutations. Considering the importance of mutations, crystals structure of EphA7 Gly656Glu, Gly656Arg, and Asp751His mutants has been explored. Changes in folding pattern and intramolecular interactions were observed in mutant structures. Secondary structural changes were observed in the hinge region of EphA7 Gly656Arg and Asp751His structure, affecting the transition of kinase domain between open and closed conformations. EphA7 Asp751His mutant structure shows a distorted nucleotide-binding groove. Differences were observed in hydrogen bonding and hydrophobic interactions between the catalytic and highly conserved DFG motif in the EphA7 mutants, which may influence the catalytic activity of kinase domain.

PubMed: 34186436
DOI: 10.1016/j.bbrc.2021.06.048

実験手法

X-RAY DIFFRACTION (2.6 Å)