Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.

Nijmegen breakage syndrome (NBS) is a chromosomal-instability syndrome. The NBS gene product, NBS1 (p95 or nibrin), is a part of the Mre11-Rad50-NBS1 complex. SIN1 is a component of the mTOR/Rictor/SIN1 complex mediating the activation of Akt. Here we show that NBS1 interacted with mTOR, Rictor, and...

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Main Authors: Jian-Qiu Wang, Jian-Hong Chen, Yen-Chung Chen, Mei-Yu Chen, Chia-Ying Hsieh, Shu-Chun Teng, Kou-Juey Wu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3675082?pdf=render
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author Jian-Qiu Wang
Jian-Hong Chen
Yen-Chung Chen
Mei-Yu Chen
Chia-Ying Hsieh
Shu-Chun Teng
Kou-Juey Wu
author_facet Jian-Qiu Wang
Jian-Hong Chen
Yen-Chung Chen
Mei-Yu Chen
Chia-Ying Hsieh
Shu-Chun Teng
Kou-Juey Wu
author_sort Jian-Qiu Wang
collection DOAJ
description Nijmegen breakage syndrome (NBS) is a chromosomal-instability syndrome. The NBS gene product, NBS1 (p95 or nibrin), is a part of the Mre11-Rad50-NBS1 complex. SIN1 is a component of the mTOR/Rictor/SIN1 complex mediating the activation of Akt. Here we show that NBS1 interacted with mTOR, Rictor, and SIN1. The specific domains of mTOR, Rictor, or SIN1 interacted with the internal domain (a.a. 221-402) of NBS1. Sucrose density gradient showed that NBS1 was located in the same fractions as the mTOR/Rictor/SIN1 complex. Knockdown of NBS1 decreased the levels of phosphorylated Akt and its downstream targets. Ionizing radiation (IR) increased the NBS1 levels and activated Akt activity. These results demonstrate that NBS1 interacts with the mTOR/Rictor/SIN1 complex through the a.a. 221-402 domain and contributes to the activation of Akt activity.
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spelling doaj.art-ebea836a5483424687678327e2df0e1e2022-12-21T18:51:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0186e6558610.1371/journal.pone.0065586Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.Jian-Qiu WangJian-Hong ChenYen-Chung ChenMei-Yu ChenChia-Ying HsiehShu-Chun TengKou-Juey WuNijmegen breakage syndrome (NBS) is a chromosomal-instability syndrome. The NBS gene product, NBS1 (p95 or nibrin), is a part of the Mre11-Rad50-NBS1 complex. SIN1 is a component of the mTOR/Rictor/SIN1 complex mediating the activation of Akt. Here we show that NBS1 interacted with mTOR, Rictor, and SIN1. The specific domains of mTOR, Rictor, or SIN1 interacted with the internal domain (a.a. 221-402) of NBS1. Sucrose density gradient showed that NBS1 was located in the same fractions as the mTOR/Rictor/SIN1 complex. Knockdown of NBS1 decreased the levels of phosphorylated Akt and its downstream targets. Ionizing radiation (IR) increased the NBS1 levels and activated Akt activity. These results demonstrate that NBS1 interacts with the mTOR/Rictor/SIN1 complex through the a.a. 221-402 domain and contributes to the activation of Akt activity.http://europepmc.org/articles/PMC3675082?pdf=render
spellingShingle Jian-Qiu Wang
Jian-Hong Chen
Yen-Chung Chen
Mei-Yu Chen
Chia-Ying Hsieh
Shu-Chun Teng
Kou-Juey Wu
Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
PLoS ONE
title Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
title_full Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
title_fullStr Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
title_full_unstemmed Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
title_short Interaction between NBS1 and the mTOR/Rictor/SIN1 complex through specific domains.
title_sort interaction between nbs1 and the mtor rictor sin1 complex through specific domains
url http://europepmc.org/articles/PMC3675082?pdf=render
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