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
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
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