Cutting edge: association with I kappa B kinase beta regulates the subcellular localization of Homer3.
Cutting edge: association with I kappa B kinase beta regulates the subcellular localization of Homer3.
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DOI:
10.4049/jimmunol.0903488
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发表时间:
2010-09-01
期刊:
影响因子:
--
通讯作者:
May MJ
中科院分区:
文献类型:
--
作者:
Yatherajam G;Banerjee PP;McCorkell KA;Solt LA;Hanson EP;Madge LA;Kang S;Worley PF;Orange JS;May MJ
The signaling and adaptor protein Homer3 plays a role in controlling immune homeostasis and self-reactivity. Homer3 is recruited to the immune synapse (IS) following TCR ligation, although the mechanisms regulating this subcellular localization are unknown. We show that Homer3 specifically associates with a novel ubiquitin-like domain in the IκB kinase (IKK) β subunit of the IKK complex. Homer3 associates with IKKβ in T cells and colocalizes with the IKK complex at the IS. However, Homer3 is not required for IKK activation, as NF-κB signaling is intact in Homer3-deficient T cells. Instead, the IKK complex recruits Homer3 to the IS following TCR engagement, and we present evidence that this association regulates actin dynamics in T cells. These findings identify a novel interaction between two major signaling proteins and reveal an unexpected NF-κB–independent function for the IKK complex in regulating the subcellular localization of Homer3.
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影响因子:
14.2
作者:
Hanson, Eric P.;Monaco-Shawver, Linda;Solt, Laura A.;Madge, Lisa A.;Banerjee, Pinaki P.;May, Michael J.;Orange, Jordan S.
通讯作者:
Orange, Jordan S.
影响因子:
20.3
作者:
Ishiguro, K;Xavier, R
通讯作者:
Xavier, R
影响因子:
32.4
作者:
Weil, R;Schwamborn, K;Israël, A
通讯作者:
Israël, A
影响因子:
5.4
作者:
He, KL;Ting, AT
通讯作者:
Ting, AT
影响因子:
56.9
作者:
Huang, Guo N.;Huso, David L.;Worley, Paul F.
通讯作者:
Worley, Paul F.