J 2023

Functional differentiation of Sec13 paralogues in the euglenozoan protists

FAKTOROVA, Drahomira, Kristina ZAHONOVA, Corinna BENZ, Joel B DACKS, Mark C FIELD et. al.

Základní údaje

Originální název

Functional differentiation of Sec13 paralogues in the euglenozoan protists

Autoři

FAKTOROVA, Drahomira (garant), Kristina ZAHONOVA, Corinna BENZ, Joel B DACKS, Mark C FIELD a Julius LUKES

Vydání

Open Biology, LONDON, ROYAL SOC, 2023, 2046-2441

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: 5.800 v roce 2022

Kód RIV

RIV/00216224:90242/23:00133778

Organizační jednotka

CIISB III

UT WoS

001005301600003

Klíčová slova anglicky

Diplonema; coatomer; membrane trafficking; nuclear pore complex; SEA; GATOR complex; paralogue expansion

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 11. 4. 2024 15:42, Mgr. Michal Petr

Anotace

V originále

The beta-propeller protein Sec13 plays roles in at least three distinct processes by virtue of being a component of the COPII endoplasmic reticulum export vesicle coat, the nuclear pore complex (NPC) and the Seh1-associated (SEA)/GATOR nutrient-sensing complex. This suggests that regulatory mechanisms coordinating these cellular activities may operate via Sec13. The NPC, COPII and SEA/GATOR are all ancient features of eukaryotic cells, and in the vast majority of eukaryotes, a single Sec13 gene is present. Here we report that the Euglenozoa, a lineage encompassing the diplonemid, kinetoplastid and euglenid protists, possess two Sec13 paralogues. Furthermore, based on protein interactions and localization studies we show that in diplonemids Sec13 functions are divided between the Sec13a and Sec13b paralogues. Specifically, Sec13a interacts with COPII and the NPC, while Sec13b interacts with Sec16 and components of the SEA/GATOR complex. We infer that euglenozoan Sec13a is responsible for NPC functions and canonical anterograde transport activities while Sec13b acts within nutrient and autophagy-related pathways, indicating a fundamentally distinct organization of coatomer complexes in euglenozoan flagellates.

Návaznosti

90242, velká výzkumná infrastruktura
Název: CIISB III