2021
Distinct EH domains of the endocytic TPLATE complex confer lipid and protein binding
YPERMAN, K., Anna PAPAGEORGIOU, R. MERCERON, S. DE MUNCK, Y. BLOCH et. al.Základní údaje
Originální název
Distinct EH domains of the endocytic TPLATE complex confer lipid and protein binding
Autoři
YPERMAN, K., Anna PAPAGEORGIOU (300 Řecko, domácí), R. MERCERON, S. DE MUNCK, Y. BLOCH, D. EECKHOUT, Q.H. JIANG, P. TACK, R. GRIGORYAN, Thomas EVANGELIDIS (300 Řecko, domácí), J. VAN LEENE, L. VINCZE, P. VANDENABEELE, F. VANHAECKE, M. POTOCKY, G. DE JAEGER, S.N. SAVVIDES, Konstantinos TRIPSIANES (300 Řecko, garant, domácí), R. PLESKOT a D. VAN DAMME
Vydání
Nature Communications, London, Nature Publishing Group, 2021, 2041-1723
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 17.694
Kód RIV
RIV/00216224:14740/21:00122020
Organizační jednotka
Středoevropský technologický institut
UT WoS
000658769900002
Klíčová slova anglicky
Adaptor Proteins; Signal Transducing; Calcium-Binding Proteins; Cell Membrane; X-Ray; NMR; Molecular Dynamics Simulation
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 10. 2024 14:21, Ing. Jana Kuchtová
Anotace
V originále
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. AtEH/Pan1 proteins contain two N-terminal Eps15 homology (EH) domains and are subunits of the endocytic TPLATE complex present in plants. Here, the authors combine X-ray crystallography, NMR and MD simulations with biochemical and in planta analysis to characterize the two AtEH1/Pan1 EH domains and reveal their structural differences and complementary functional roles.
Návaznosti
LQ1601, projekt VaV |
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MUNI/G/0739/2017, interní kód MU |
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90127, velká výzkumná infrastruktura |
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