Association of SH2 Domain Protein Tyrosine Phosphatases with the Epidermal Growth Factor Receptor in Human Tumor Cells
Association of SH2 Domain Protein Tyrosine Phosphatases with the Epidermal Growth Factor Receptor in Human Tumor Cells
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SH2 结构域蛋白酪氨酸磷酸酶与人肿瘤细胞中表皮生长因子受体的关联
DOI:
10.1074/jbc.270.36.21277
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发表时间:
1995
期刊:
影响因子:
--
通讯作者:
F. Böhmer
中科院分区:
文献类型:
--
作者:
S. Tomić;U. Greiser;R. Lammers;A. Kharitonenkov;Evgeny Imyanitov;A. Ullrich;F. Böhmer
The SH2 domain protein tyrosine phosphatases (PTPases) PTP1C and PTP1D were found associated with epidermal growth factor (EGF) receptor which was purified from A431 cell membranes by several steps of chromatography. Both PTPases also associated with the EGF receptor upon exposure of immunoprecipitated receptor to lysates of MCF7 mammary carcinoma cells. The associated PTPases had little activity toward the bound receptor when it was autophosphorylated in vitro. Receptor dephosphorylation could, however, be initiated by treatment of the receptor-PTPase complex with phosphatidic acid (PA). When autophosphorylated EGF receptor was exposed to lysates of PTP1C or PTP1D overexpressing 293 cells, the association of PTP1C but not of PTP1D was enhanced in the presence of PA. In intact A431 cells, an association of PTP1C and PTP1D with the EGF receptor was detectable by coimmunoprecipitation experiments. PA treatment reduced the phosphorylation state of ligand activated EGF receptors in A431 cells and in 293 cells overexpressing EGF receptors together with PTP1C but not in 293 cells overexpressing EGF receptors alone or together with PTP1D. We conclude that PTP1C but not PTP1D participates in dephosphorylation of activated EGF receptors. A possible role of PA for physiological modulation of EGF receptor signaling is discussed.
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DOI:
10.1042/bj3020039
发表时间:
1994
期刊:
The Biochemical journal
影响因子:
--
作者:
Zhang,WR;Hashimoto,N;Ahmad,F;Ding,W;Goldstein,BJ
通讯作者:
Goldstein,BJ
DOI:
--
发表时间:
1993
期刊:
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research
影响因子:
--
作者:
Schievella,AR;Paige,LA;Johnson,KA;Hill,DE;Erikson,RL
通讯作者:
Erikson,RL
DOI:
10.1016/0304-419x(92)90007-l
发表时间:
1992
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Brautigan,DL
通讯作者:
Brautigan,DL
DOI:
10.1016/s0021-9258(18)68703-4
发表时间:
1988-05
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
N. Tonks;C. D. Diltz;E. Fischer
通讯作者:
N. Tonks;C. D. Diltz;E. Fischer
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Sugimoto,S;Lechleider,RJ;Shoelson,SE;Neel,BG;Walsh,CT
通讯作者:
Walsh,CT