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. 1994 Jan 4;91(1):167–171. doi: 10.1073/pnas.91.1.167

Epidermal growth factor-receptor mutant lacking the autophosphorylation sites induces phosphorylation of Shc protein and Shc-Grb2/ASH association and retains mitogenic activity.

N Gotoh 1, A Tojo 1, K Muroya 1, Y Hashimoto 1, S Hattori 1, S Nakamura 1, T Takenawa 1, Y Yazaki 1, M Shibuya 1
PMCID: PMC42907  PMID: 7506413

Abstract

Epidermal growth factor (EGF) receptor (EGFR) can induce cell growth and transformation in a ligand-dependent manner. To examine whether the autophosphorylation of EGFR correlates with the capacity of the activated EGFR to induce cell growth and transformation, we truncated the human EGFR just after residue 1011, removing all three major autophosphorylation sites (DEL1011). Further, a point mutation was introduced at another autophosphorylation site, Tyr-992-->Phe (DEL1011+F992). The wild-type and mutant receptors were stably expressed in a NIH 3T3 variant cell line that expresses an extremely low level of endogenous EGFR and does not grow with EGF. As expected, DEL1011 and DEL1011+F992 were found to be severely impaired in EGF-induced autophosphorylation, due to the deletion of the appropriate target tyrosines. However, mutant receptors still could induce EGF-dependent DNA synthesis, morphological transformation, and anchorage-independent growth, although the extent of these was significantly reduced when compared with wild-type EGFR. EGF-induced tyrosine phosphorylation of Ras-GTPase activating protein-associated protein p62 and phospholipase C gamma 1 was dramatically reduced in the cells expressing DEL1011 and DEL1011+F992. On the other hand, tyrosine phosphorylation of Shc, complex formation of Shc-Grb2/Ash, and activation of microtubule-associated protein kinase were still fully induced upon EGF stimulation without binding of Shc or Grb2/Ash to the mutant receptor. Thus, tyrosine phosphorylation of Shc may play a crucial role for activating Ras and generating mitotic signals by the activated EGFR mutant.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Beguinot L., Lyall R. M., Willingham M. C., Pastan I. Down-regulation of the epidermal growth factor receptor in KB cells is due to receptor internalization and subsequent degradation in lysosomes. Proc Natl Acad Sci U S A. 1984 Apr;81(8):2384–2388. doi: 10.1073/pnas.81.8.2384. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Buday L., Downward J. Epidermal growth factor regulates p21ras through the formation of a complex of receptor, Grb2 adapter protein, and Sos nucleotide exchange factor. Cell. 1993 May 7;73(3):611–620. doi: 10.1016/0092-8674(93)90146-h. [DOI] [PubMed] [Google Scholar]
  3. Decker S. J. Transmembrane signaling by epidermal growth factor receptors lacking autophosphorylation sites. J Biol Chem. 1993 May 5;268(13):9176–9179. [PubMed] [Google Scholar]
  4. Downward J., Parker P., Waterfield M. D. Autophosphorylation sites on the epidermal growth factor receptor. Nature. 1984 Oct 4;311(5985):483–485. doi: 10.1038/311483a0. [DOI] [PubMed] [Google Scholar]
  5. Egan S. E., Giddings B. W., Brooks M. W., Buday L., Sizeland A. M., Weinberg R. A. Association of Sos Ras exchange protein with Grb2 is implicated in tyrosine kinase signal transduction and transformation. Nature. 1993 May 6;363(6424):45–51. doi: 10.1038/363045a0. [DOI] [PubMed] [Google Scholar]
  6. Ekstrand A. J., Sugawa N., James C. D., Collins V. P. Amplified and rearranged epidermal growth factor receptor genes in human glioblastomas reveal deletions of sequences encoding portions of the N- and/or C-terminal tails. Proc Natl Acad Sci U S A. 1992 May 15;89(10):4309–4313. doi: 10.1073/pnas.89.10.4309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Ellis C., Moran M., McCormick F., Pawson T. Phosphorylation of GAP and GAP-associated proteins by transforming and mitogenic tyrosine kinases. Nature. 1990 Jan 25;343(6256):377–381. doi: 10.1038/343377a0. [DOI] [PubMed] [Google Scholar]
  8. Fazioli F., Kim U. H., Rhee S. G., Molloy C. J., Segatto O., Di Fiore P. P. The erbB-2 mitogenic signaling pathway: tyrosine phosphorylation of phospholipase C-gamma and GTPase-activating protein does not correlate with erbB-2 mitogenic potency. Mol Cell Biol. 1991 Apr;11(4):2040–2048. doi: 10.1128/mcb.11.4.2040. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Gotoh N., Tojo A., Hino M., Yazaki Y., Shibuya M. A highly conserved tyrosine residue at codon 845 within the kinase domain is not required for the transforming activity of human epidermal growth factor receptor. Biochem Biophys Res Commun. 1992 Jul 31;186(2):768–774. doi: 10.1016/0006-291x(92)90812-y. [DOI] [PubMed] [Google Scholar]
  10. Hattori S., Maekawa M., Nakamura S. Identification of neurofibromatosis type I gene product as an insoluble GTPase-activating protein toward ras p21. Oncogene. 1992 Mar;7(3):481–485. [PubMed] [Google Scholar]
  11. Kawamoto T., Sato J. D., Le A., Polikoff J., Sato G. H., Mendelsohn J. Growth stimulation of A431 cells by epidermal growth factor: identification of high-affinity receptors for epidermal growth factor by an anti-receptor monoclonal antibody. Proc Natl Acad Sci U S A. 1983 Mar;80(5):1337–1341. doi: 10.1073/pnas.80.5.1337. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Khazaie K., Dull T. J., Graf T., Schlessinger J., Ullrich A., Beug H., Vennström B. Truncation of the human EGF receptor leads to differential transforming potentials in primary avian fibroblasts and erythroblasts. EMBO J. 1988 Oct;7(10):3061–3071. doi: 10.1002/j.1460-2075.1988.tb03171.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Koch C. A., Anderson D., Moran M. F., Ellis C., Pawson T. SH2 and SH3 domains: elements that control interactions of cytoplasmic signaling proteins. Science. 1991 May 3;252(5006):668–674. doi: 10.1126/science.1708916. [DOI] [PubMed] [Google Scholar]
  14. Livneh E., Reiss N., Berent E., Ullrich A., Schlessinger J. An insertional mutant of epidermal growth factor receptor allows dissection of diverse receptor functions. EMBO J. 1987 Sep;6(9):2669–2676. doi: 10.1002/j.1460-2075.1987.tb02558.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Lowenstein E. J., Daly R. J., Batzer A. G., Li W., Margolis B., Lammers R., Ullrich A., Skolnik E. Y., Bar-Sagi D., Schlessinger J. The SH2 and SH3 domain-containing protein GRB2 links receptor tyrosine kinases to ras signaling. Cell. 1992 Aug 7;70(3):431–442. doi: 10.1016/0092-8674(92)90167-b. [DOI] [PubMed] [Google Scholar]
  16. Margolis B. L., Lax I., Kris R., Dombalagian M., Honegger A. M., Howk R., Givol D., Ullrich A., Schlessinger J. All autophosphorylation sites of epidermal growth factor (EGF) receptor and HER2/neu are located in their carboxyl-terminal tails. Identification of a novel site in EGF receptor. J Biol Chem. 1989 Jun 25;264(18):10667–10671. [PubMed] [Google Scholar]
  17. Margolis B., Bellot F., Honegger A. M., Ullrich A., Schlessinger J., Zilberstein A. Tyrosine kinase activity is essential for the association of phospholipase C-gamma with the epidermal growth factor receptor. Mol Cell Biol. 1990 Feb;10(2):435–441. doi: 10.1128/mcb.10.2.435. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Margolis B., Li N., Koch A., Mohammadi M., Hurwitz D. R., Zilberstein A., Ullrich A., Pawson T., Schlessinger J. The tyrosine phosphorylated carboxyterminus of the EGF receptor is a binding site for GAP and PLC-gamma. EMBO J. 1990 Dec;9(13):4375–4380. doi: 10.1002/j.1460-2075.1990.tb07887.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Margolis B., Rhee S. G., Felder S., Mervic M., Lyall R., Levitzki A., Ullrich A., Zilberstein A., Schlessinger J. EGF induces tyrosine phosphorylation of phospholipase C-II: a potential mechanism for EGF receptor signaling. Cell. 1989 Jun 30;57(7):1101–1107. doi: 10.1016/0092-8674(89)90047-0. [DOI] [PubMed] [Google Scholar]
  20. Matuoka K., Shibata M., Yamakawa A., Takenawa T. Cloning of ASH, a ubiquitous protein composed of one Src homology region (SH) 2 and two SH3 domains, from human and rat cDNA libraries. Proc Natl Acad Sci U S A. 1992 Oct 1;89(19):9015–9019. doi: 10.1073/pnas.89.19.9015. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Meisenhelder J., Suh P. G., Rhee S. G., Hunter T. Phospholipase C-gamma is a substrate for the PDGF and EGF receptor protein-tyrosine kinases in vivo and in vitro. Cell. 1989 Jun 30;57(7):1109–1122. doi: 10.1016/0092-8674(89)90048-2. [DOI] [PubMed] [Google Scholar]
  22. Pelicci G., Lanfrancone L., Grignani F., McGlade J., Cavallo F., Forni G., Nicoletti I., Grignani F., Pawson T., Pelicci P. G. A novel transforming protein (SHC) with an SH2 domain is implicated in mitogenic signal transduction. Cell. 1992 Jul 10;70(1):93–104. doi: 10.1016/0092-8674(92)90536-l. [DOI] [PubMed] [Google Scholar]
  23. Roberts T. M. Cell biology. A signal chain of events. Nature. 1992 Dec 10;360(6404):534–535. doi: 10.1038/360534a0. [DOI] [PubMed] [Google Scholar]
  24. Rozakis-Adcock M., McGlade J., Mbamalu G., Pelicci G., Daly R., Li W., Batzer A., Thomas S., Brugge J., Pelicci P. G. Association of the Shc and Grb2/Sem5 SH2-containing proteins is implicated in activation of the Ras pathway by tyrosine kinases. Nature. 1992 Dec 17;360(6405):689–692. doi: 10.1038/360689a0. [DOI] [PubMed] [Google Scholar]
  25. Ullrich A., Schlessinger J. Signal transduction by receptors with tyrosine kinase activity. Cell. 1990 Apr 20;61(2):203–212. doi: 10.1016/0092-8674(90)90801-k. [DOI] [PubMed] [Google Scholar]
  26. Walton G. M., Chen W. S., Rosenfeld M. G., Gill G. N. Analysis of deletions of the carboxyl terminus of the epidermal growth factor receptor reveals self-phosphorylation at tyrosine 992 and enhanced in vivo tyrosine phosphorylation of cell substrates. J Biol Chem. 1990 Jan 25;265(3):1750–1754. [PubMed] [Google Scholar]
  27. Yamazaki H., Ohba Y., Tamaoki N., Shibuya M. A deletion mutation within the ligand binding domain is responsible for activation of epidermal growth factor receptor gene in human brain tumors. Jpn J Cancer Res. 1990 Aug;81(8):773–779. doi: 10.1111/j.1349-7006.1990.tb02644.x. [DOI] [PMC free article] [PubMed] [Google Scholar]

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