A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.

An Arabidopsis U-box E3 ubiquitin ligase Plant U-box 20 (PUB20; alternatively called AtCMPG1) was identified as a possible interactor of the Arabidopsis G-protein β subunit, AGB1, by yeast two-hybrid screening. A bimolecular fluorescence complementation (BiFC) assay showed that PUB20 interacted with...

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Main Authors: Shio Kobayashi, Daisuke Tsugama, Shenkui Liu, Tetsuo Takano
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3499536?pdf=render
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author Shio Kobayashi
Daisuke Tsugama
Shenkui Liu
Tetsuo Takano
author_facet Shio Kobayashi
Daisuke Tsugama
Shenkui Liu
Tetsuo Takano
author_sort Shio Kobayashi
collection DOAJ
description An Arabidopsis U-box E3 ubiquitin ligase Plant U-box 20 (PUB20; alternatively called AtCMPG1) was identified as a possible interactor of the Arabidopsis G-protein β subunit, AGB1, by yeast two-hybrid screening. A bimolecular fluorescence complementation (BiFC) assay showed that PUB20 interacted with AGB1 in the nuclei and the cytosol. The expression levels of PUB20 and its closest homolog, PUB21 were stable under many conditions. GUS driven by the PUB20 promoter was active in anthers, pollen, premature seeds and receptacles and GUS driven by the PUB21 promoter was active in anthers and funiculi. PUB20 was found to have autoubiquitination activity in vitro.
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spelling doaj.art-fa6a9b32e29c40faaa17b622875a6f3e2022-12-21T22:39:56ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01711e4920710.1371/journal.pone.0049207A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.Shio KobayashiDaisuke TsugamaShenkui LiuTetsuo TakanoAn Arabidopsis U-box E3 ubiquitin ligase Plant U-box 20 (PUB20; alternatively called AtCMPG1) was identified as a possible interactor of the Arabidopsis G-protein β subunit, AGB1, by yeast two-hybrid screening. A bimolecular fluorescence complementation (BiFC) assay showed that PUB20 interacted with AGB1 in the nuclei and the cytosol. The expression levels of PUB20 and its closest homolog, PUB21 were stable under many conditions. GUS driven by the PUB20 promoter was active in anthers, pollen, premature seeds and receptacles and GUS driven by the PUB21 promoter was active in anthers and funiculi. PUB20 was found to have autoubiquitination activity in vitro.http://europepmc.org/articles/PMC3499536?pdf=render
spellingShingle Shio Kobayashi
Daisuke Tsugama
Shenkui Liu
Tetsuo Takano
A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
PLoS ONE
title A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
title_full A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
title_fullStr A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
title_full_unstemmed A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
title_short A U-Box E3 ubiquitin ligase, PUB20, interacts with the Arabidopsis G-protein β subunit, AGB1.
title_sort u box e3 ubiquitin ligase pub20 interacts with the arabidopsis g protein β subunit agb1
url http://europepmc.org/articles/PMC3499536?pdf=render
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