期刊
CYTOKINE & GROWTH FACTOR REVIEWS
卷 19, 期 5-6, 页码 371-381出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cytogfr.2008.08.006
关键词
Signal transduction; Cytokine receptor; SOCS; SOCS box; E3 ligase
资金
- Scientific Research-Flanders [1.5.446.98]
- Ghent University [GOA 12051401]
- IUAP-6 [P6:28]
The suppressors of cytokine signalling (SOCS) box is a structural domain found at the C-terminus of over 70 human proteins. It is usually coupled to a protein interaction module such as ail SH2 domain in case of SOCS proteins, a family of modulators of cytokine signaling. The SOCS box participates in the formation of E3 ligase complexes, marking activated cytokine receptor complexes for proteasomal degradation. A similar mechanism was recently uncovered for controlling SOCS activity itself, since SOCS2 was found to enhance the turnover of other SOCS proteins. The SOCS box can also add unique features to individual SOCS proteins: it can function as ail adaptor domain as was demonstrated for SOCS3, or as a modulator of substrate binding in case of CIS. In this review we discuss these multiple roles of the SOCS box, which emerges as a versatile module controlling cytokine signaling via multiple mechanisms. (c) 2008 Elsevier Ltd. All rights reserved.
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