Unc119, a novel activator of Lck/Fyn, is essential for T cell activation.
Unc119, a novel activator of Lck/Fyn, is essential for T cell activation.
复制标题
DOI:
10.1084/jem.20030589
复制
发表时间:
2004-02-02
期刊:
影响因子:
--
通讯作者:
Alam R
中科院分区:
文献类型:
--
作者:
Gorska MM;Stafford SJ;Cen O;Sur S;Alam R
The first step in T cell receptor for antigen (TCR) signaling is the activation of the receptor-bound Src kinases, Lck and Fyn. The exact mechanism of this process is unknown. Here, we report that the novel Src homology (SH) 3/SH2 ligand–Uncoordinated 119 (Unc119) associates with CD3 and CD4, and activates Lck and Fyn. Unc119 overexpression increases Lck/Fyn activity in T cells. In Unc119-deficient T cells, Lck/Fyn activity is dramatically reduced with concomitant decrease in interleukin 2 production and cellular proliferation. Reconstitution of cells with Unc119 reverses the signaling and functional outcome. Thus, Unc119 is a receptor-associated activator of Src-type kinases. It provides a novel mechanism of signal generation in the TCR complex.
登录
查看更多内容
DOI:
10.1084/jem.190.3.375
发表时间:
1999-08-02
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Holdorf AD;Green JM;Levin SD;Denny MF;Straus DB;Link V;Changelian PS;Allen PM;Shaw AS
通讯作者:
Shaw AS
DOI:
10.1083/jcb.135.6.1515
发表时间:
1996-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Rodgers W;Rose JK
通讯作者:
Rose JK
影响因子:
4.8
作者:
Cen, O;Gorska, MM;Alam, R
通讯作者:
Alam, R
影响因子:
64.8
作者:
Sicheri, F;Moarefi, I;Kuriyan, J
通讯作者:
Kuriyan, J
影响因子:
32.4
作者:
Ouyang, W;Ranganath, SH;Murphy, KM
通讯作者:
Murphy, KM