The tetraspanin TSP3 of Neurospora crassa is a vacuolar membrane protein and shares characteristics with IDI proteins

The fungal vacuole is an organelle, which adopts pleiotropic morphologies and functions. In aging and starving hyphae it is the compartment of degradation and recycling of cellular constituents. Here we identified TSP3, one of three tetraspanins present in the filamentous ascomycete fungus Neurospor...

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Veröffentlicht in:Mycologia 2016-05, Vol.108 (3), p.581-589
Hauptverfasser: Heine, Daniela, Petereit, Linda, Schumann, Marcel R., Patzelt, Diana, Rachid, Leila, Brandt, Ulrike, Werner, Antonia, Pöggeler, Stefanie, Fleißner, André
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container_end_page 589
container_issue 3
container_start_page 581
container_title Mycologia
container_volume 108
creator Heine, Daniela
Petereit, Linda
Schumann, Marcel R.
Patzelt, Diana
Rachid, Leila
Brandt, Ulrike
Werner, Antonia
Pöggeler, Stefanie
Fleißner, André
description The fungal vacuole is an organelle, which adopts pleiotropic morphologies and functions. In aging and starving hyphae it is the compartment of degradation and recycling of cellular constituents. Here we identified TSP3, one of three tetraspanins present in the filamentous ascomycete fungus Neurospora crassa, as a vacuolar membrane protein. The protein is detected only in aging and starving cultures and under other conditions, which induce autophagy, such as vegetative incompatibility or the presence of the macrolide antibiotic rapamycin. Mutant analysis revealed that TSP3 is dispensable for growth and development of the fungus under laboratory conditions. Together these findings indicate that tsp3 shares characteristics with idi (induced during incompatibility) genes and might promote vacuolar functions related to autophagy.
doi_str_mv 10.3852/15-225
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source MEDLINE; Jstor Complete Legacy; Alma/SFX Local Collection
subjects Ascomycetes
autophagy
Fungal Proteins - genetics
Fungal Proteins - metabolism
idi gene
Membrane Proteins - genetics
Membrane Proteins - metabolism
Neurospora crassa
Neurospora crassa - genetics
Neurospora crassa - growth & development
Neurospora crassa - metabolism
ORGANELLES
tetraspanin
Tetraspanins - genetics
Tetraspanins - metabolism
tsp3
vacuole
Vacuoles - genetics
Vacuoles - metabolism
title The tetraspanin TSP3 of Neurospora crassa is a vacuolar membrane protein and shares characteristics with IDI proteins
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