Autophosphorylation of the Fes Tyrosine Kinase
Autophosphorylation of the Fes Tyrosine Kinase
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Fes 酪氨酸激酶的自磷酸化
DOI:
--
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发表时间:
1996
影响因子:
4.8
通讯作者:
T. Smithgall
中科院分区:
文献类型:
--
作者:
J. Rogers;Renee D. Read;Jianze Li;K. Peters;T. Smithgall
The human c-fes proto-oncogene encodes a cytoplasmic tyrosine kinase (Fes) that is associated with multiple hematopoietic cytokine receptors. Fes tyrosine autophosphorylation sites may regulate kinase activity and recruit downstream signaling proteins with SH2 domains. To localize the Fes autophosphorylation sites, full-length Fes and deletion mutants lacking either the unique N-terminal or SH2 domain were autophosphorylated in vitro and analyzed by CNBr cleavage. Identical phosphopeptides of 10 and 4 kDa were produced with all three proteins, localizing the tyrosine autophosphorylation sites to the C-terminal kinase domain. Substitution of kinase domain tyrosine residues 713 or 811 with phenylalanine resulted in a loss of the 10- and 4-kDa phosphopeptides, respectively, identifying these tyrosines as in vitro autophosphorylation sites. CNBr cleavage analysis of Fes isolated from 32PO4-labeled 293T cells showed that Tyr-713 and Tyr-811 are also autophosphorylated in vivo. Mutagenesis of Tyr-713 reduced both autophosphorylation of Tyr-811 and transphosphorylation of Bcr, a recently identified Fes substrate, supporting a major regulatory role for Tyr-713. Wild-type Fes transphosphorylated a kinase-inactive Fes mutant on Tyr-713 and Tyr-811, suggesting that Fes autophosphorylation occurs via an intermolecular mechanism analogous to receptor tyrosine kinases.
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影响因子:
2.9
作者:
Hjermstad,SJ;Briggs,SD;Smithgall,TE
通讯作者:
Smithgall,TE
影响因子:
8
作者:
Hjermstad,SJ;Peters,KL;Briggs,SD;Glazer,RI;Smithgall,TE
通讯作者:
Smithgall,TE
DOI:
10.1073/pnas.91.11.4683
发表时间:
1994-05-24
影响因子:
11.1
作者:
COREY, SJ;BURKHARDT, AL;TWEARDY, DJ
通讯作者:
TWEARDY, DJ
DOI:
--
发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Izuhara,K;Feldman,RA;Greer,P;Harada,N
通讯作者:
Harada,N
影响因子:
2.9
作者:
Smithgall,TE;Goswami,BB;Nagashfar,Z;Ahmad,S;Glazer,RI
通讯作者:
Glazer,RI