The extracellular domain of fibroblast growth factor receptor 3 inhibits ligand-independent dimerization.
The extracellular domain of fibroblast growth factor receptor 3 inhibits ligand-independent dimerization.
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DOI:
10.1126/scisignal.2001195
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发表时间:
2010-11-30
影响因子:
7.3
通讯作者:
Hristova K
中科院分区:
文献类型:
--
作者:
Chen L;Placone J;Novicky L;Hristova K
Dysregulation of ligand-independent receptor tyrosine kinase (RTK) dimerization, which is the first step in RTK activation, leads to pathologies. A mechanistic understanding of the dimerization process is lacking, and this lack of basic knowledge is one bottleneck in developing effective RTK-targeted therapies. For instance, the roles and the relative contributions of the different RTK domains to RTK dimerization are unknown. Here we use quantitative imaging Förster resonance energy transfer (QI-FRET) to determine the contribution of the extracellular (EC) domain of fibroblast growth factor receptor 3 (FGFR3) to FGFR3 dimerization. We provide the first direct experimental evidence that the contribution of FGFR3 EC domain to dimerization is repulsive in the absence of ligand, and on the order of 1 kcal/mole. The magnitude of this repulsive contribution is similar to the dimer over-stabilization that can occur due to pathogenic single amino acid mutations, and therefore significant for biological function.
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DOI:
10.1073/pnas.83.17.6258
发表时间:
1986-09-01
影响因子:
11.1
作者:
GRASBERGER, B;MINTON, AP;METZGER, H
通讯作者:
METZGER, H
影响因子:
3.4
作者:
Chen, Lirong;Merzlyakov, Mikhail;Hristova, Kalina
通讯作者:
Hristova, Kalina
影响因子:
15
作者:
Chen, Lirong;Novicky, Lawrence;Hristova, Kalina
通讯作者:
Hristova, Kalina
影响因子:
64.5
作者:
Garrett, TPJ;McKern, NM;Ward, CW
通讯作者:
Ward, CW
影响因子:
64.8
作者:
Cho, HS;Mason, K;Leahy, DJ
通讯作者:
Leahy, DJ