RRC ID 18132
著者 Shen J, Maruyama IN.
タイトル Nerve growth factor receptor TrkA exists as a preformed, yet inactive, dimer in living cells.
ジャーナル FEBS Lett
Abstract The tropomyosin-related kinase A (TrkA) receptor and its ligand, nerve growth factor (NGF), play crucial roles in the development and function of the nervous system. NGF is believed to activate TrkA by bridging two TrkA monomers, leading to TrkA transphosphorylation. However, here we show that the majority of TrkA receptors exist as preformed, yet inactive, homodimers prior to NGF binding by using three different approaches such as chemical crosslinking and enzyme fragment complementation assay. Furthermore, TrkA homodimers are formed in endoplasmic reticulum before newly synthesized receptors reach the cell surface. These findings shed light on molecular mechanisms underlying transmembrane signaling by TrkA.
巻・号 585(2)
ページ 295-9
公開日 2011-1-21
DOI 10.1016/j.febslet.2010.12.031
PII S0014-5793(10)01026-4
PMID 21187090
MeSH Animals Cell Line Cell Membrane / metabolism Endoplasmic Reticulum / metabolism Humans Nerve Growth Factor / metabolism Protein Multimerization Protein Transport Rats Receptor, trkA / chemistry Receptor, trkA / metabolism* Receptors, Nerve Growth Factor / metabolism
IF 3.057
引用数 27
WOS 分野 BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
リソース情報
ヒト・動物細胞 PC-12(RCB0009) 293(RCB1637)