6YEU

Second EH domain of AtEH1/Pan1

6YEU の概要

• エントリーDOI: 10.2210/pdb6yeu/pdb
• NMR情報: BMRB: 34504
• 分子名称: Calcium-binding EF hand family protein, CALCIUM ION (2 entities in total)
• 機能のキーワード: adaptor protein, ef-hand, eh domain, calcium-binding, peptide motif binding, peptide binding protein
• 由来する生物種: Arabidopsis thaliana (Thale cress)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 11776.20

構造登録者

Yperman, K.,Papageorgiou, A.,Evangelidis, T.,Van Damme, D.,Tripsianes, K. (登録日: 2020-03-25, 公開日: 2021-03-31, 最終更新日: 2024-06-19)

主引用文献

Yperman, K.,Papageorgiou, A.C.,Merceron, R.,De Munck, S.,Bloch, Y.,Eeckhout, D.,Jiang, Q.,Tack, P.,Grigoryan, R.,Evangelidis, T.,Van Leene, J.,Vincze, L.,Vandenabeele, P.,Vanhaecke, F.,Potocky, M.,De Jaeger, G.,Savvides, S.N.,Tripsianes, K.,Pleskot, R.,Van Damme, D.
Distinct EH domains of the endocytic TPLATE complex confer lipid and protein binding.
Nat Commun, 12:3050-3050, 2021

PubMed Abstract: Clathrin-mediated endocytosis (CME) is the gatekeeper of the plasma membrane. In contrast to animals and yeasts, CME in plants depends on the TPLATE complex (TPC), an evolutionary ancient adaptor complex. However, the mechanistic contribution of the individual TPC subunits to plant CME remains elusive. In this study, we used a multidisciplinary approach to elucidate the structural and functional roles of the evolutionary conserved N-terminal Eps15 homology (EH) domains of the TPC subunit AtEH1/Pan1. By integrating high-resolution structural information obtained by X-ray crystallography and NMR spectroscopy with all-atom molecular dynamics simulations, we provide structural insight into the function of both EH domains. Both domains bind phosphatidic acid with a different strength, and only the second domain binds phosphatidylinositol 4,5-bisphosphate. Unbiased peptidome profiling by mass-spectrometry revealed that the first EH domain preferentially interacts with the double N-terminal NPF motif of a previously unidentified TPC interactor, the integral membrane protein Secretory Carrier Membrane Protein 5 (SCAMP5). Furthermore, we show that AtEH/Pan1 proteins control the internalization of SCAMP5 via this double NPF peptide interaction motif. Collectively, our structural and functional studies reveal distinct but complementary roles of the EH domains of AtEH/Pan1 in plant CME and connect the internalization of SCAMP5 to the TPLATE complex.

PubMed: 34031427
DOI: 10.1038/s41467-021-23314-6

実験手法

SOLUTION NMR