Abstract
To investigate the possible functional role of epidermal growth factor (EGF) receptor-phospholipase C-gamma 1 (PLC-gamma 1) complexes, we have measured PLC-gamma 1 activity in vitro in the absence or presence of purified EGF receptor. Immunoprecipitates of PLC-gamma 1 from control A-431 cells were incubated without or with purified EGF receptor in the absence or presence of ATP. Under these conditions the EGF receptor increased non-tyrosine-phosphorylated PLC-gamma 1 activity 3-4-fold in the absence or presence of ATP, but increased tyrosine-phosphorylated and activated PLC-gamma 1 by only 20-50%. Both basal and autophosphorylated forms of the purified EGF receptor increased the activity of the non-tyrosine-phosphorylated PLC-gamma 1, and stoichiometric levels of purified receptor were required to increase PLC activity. Other tyrosine kinases such as the platelet-derived growth factor receptor and erbB-2, but not the insulin receptor, also stimulated PLC-gamma 1 activity. PLC-gamma 1 activity could be activated with the kinase-negative EGF receptor, but a C-terminal truncated receptor was much less effective. Purified EGF receptor could also activate PLC-beta 1, but with a much decreased potency compared with PLC-gamma 1. Our results suggest that in vitro the EGF receptor can increase PLC-gamma 1 activity independently of tyrosine phosphorylation.
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Selected References
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- Anderson D., Koch C. A., Grey L., Ellis C., Moran M. F., Pawson T. Binding of SH2 domains of phospholipase C gamma 1, GAP, and Src to activated growth factor receptors. Science. 1990 Nov 16;250(4983):979–982. doi: 10.1126/science.2173144. [DOI] [PubMed] [Google Scholar]
- Arteaga C. L., Johnson M. D., Todderud G., Coffey R. J., Carpenter G., Page D. L. Elevated content of the tyrosine kinase substrate phospholipase C-gamma 1 in primary human breast carcinomas. Proc Natl Acad Sci U S A. 1991 Dec 1;88(23):10435–10439. doi: 10.1073/pnas.88.23.10435. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carpenter G., King L., Jr, Cohen S. Rapid enhancement of protein phosphorylation in A-431 cell membrane preparations by epidermal growth factor. J Biol Chem. 1979 Jun 10;254(11):4884–4891. [PubMed] [Google Scholar]
- Carpenter G. Receptor tyrosine kinase substrates: src homology domains and signal transduction. FASEB J. 1992 Nov;6(14):3283–3289. doi: 10.1096/fasebj.6.14.1385243. [DOI] [PubMed] [Google Scholar]
- Cerione R. A., Staniszewski C., Benovic J. L., Lefkowitz R. J., Caron M. G., Gierschik P., Somers R., Spiegel A. M., Codina J., Birnbaumer L. Specificity of the functional interactions of the beta-adrenergic receptor and rhodopsin with guanine nucleotide regulatory proteins reconstituted in phospholipid vesicles. J Biol Chem. 1985 Feb 10;260(3):1493–1500. [PubMed] [Google Scholar]
- Cohen S., Ushiro H., Stoscheck C., Chinkers M. A native 170,000 epidermal growth factor receptor-kinase complex from shed plasma membrane vesicles. J Biol Chem. 1982 Feb 10;257(3):1523–1531. [PubMed] [Google Scholar]
- Goldschmidt-Clermont P. J., Kim J. W., Machesky L. M., Rhee S. G., Pollard T. D. Regulation of phospholipase C-gamma 1 by profilin and tyrosine phosphorylation. Science. 1991 Mar 8;251(4998):1231–1233. doi: 10.1126/science.1848725. [DOI] [PubMed] [Google Scholar]
- Goldschmidt-Clermont P. J., Machesky L. M., Baldassare J. J., Pollard T. D. The actin-binding protein profilin binds to PIP2 and inhibits its hydrolysis by phospholipase C. Science. 1990 Mar 30;247(4950):1575–1578. doi: 10.1126/science.2157283. [DOI] [PubMed] [Google Scholar]
- Granja C., Lin L. L., Yunis E. J., Relias V., Dasgupta J. D. PLC gamma 1, a possible mediator of T cell receptor function. J Biol Chem. 1991 Sep 5;266(25):16277–16280. [PubMed] [Google Scholar]
- Kim H. K., Kim J. W., Zilberstein A., Margolis B., Kim J. G., Schlessinger J., Rhee S. G. PDGF stimulation of inositol phospholipid hydrolysis requires PLC-gamma 1 phosphorylation on tyrosine residues 783 and 1254. Cell. 1991 May 3;65(3):435–441. doi: 10.1016/0092-8674(91)90461-7. [DOI] [PubMed] [Google Scholar]
- 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]
- Kumjian D. A., Wahl M. I., Rhee S. G., Daniel T. O. Platelet-derived growth factor (PDGF) binding promotes physical association of PDGF receptor with phospholipase C. Proc Natl Acad Sci U S A. 1989 Nov;86(21):8232–8236. doi: 10.1073/pnas.86.21.8232. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 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]
- 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]
- Mohammadi M., Honegger A. M., Rotin D., Fischer R., Bellot F., Li W., Dionne C. A., Jaye M., Rubinstein M., Schlessinger J. A tyrosine-phosphorylated carboxy-terminal peptide of the fibroblast growth factor receptor (Flg) is a binding site for the SH2 domain of phospholipase C-gamma 1. Mol Cell Biol. 1991 Oct;11(10):5068–5078. doi: 10.1128/mcb.11.10.5068. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Morrison D. K., Kaplan D. R., Rhee S. G., Williams L. T. Platelet-derived growth factor (PDGF)-dependent association of phospholipase C-gamma with the PDGF receptor signaling complex. Mol Cell Biol. 1990 May;10(5):2359–2366. doi: 10.1128/mcb.10.5.2359. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nanney L. B., Gates R. E., Todderud G., King L. E., Jr, Carpenter G. Altered distribution of phospholipase C-gamma 1 in benign hyperproliferative epidermal diseases. Cell Growth Differ. 1992 Apr;3(4):233–239. [PubMed] [Google Scholar]
- Nishibe S., Wahl M. I., Hernández-Sotomayor S. M., Tonks N. K., Rhee S. G., Carpenter G. Increase of the catalytic activity of phospholipase C-gamma 1 by tyrosine phosphorylation. Science. 1990 Nov 30;250(4985):1253–1256. doi: 10.1126/science.1700866. [DOI] [PubMed] [Google Scholar]
- Rhee S. G., Suh P. G., Ryu S. H., Lee S. Y. Studies of inositol phospholipid-specific phospholipase C. Science. 1989 May 5;244(4904):546–550. doi: 10.1126/science.2541501. [DOI] [PubMed] [Google Scholar]
- Rotin D., Margolis B., Mohammadi M., Daly R. J., Daum G., Li N., Fischer E. H., Burgess W. H., Ullrich A., Schlessinger J. SH2 domains prevent tyrosine dephosphorylation of the EGF receptor: identification of Tyr992 as the high-affinity binding site for SH2 domains of phospholipase C gamma. EMBO J. 1992 Feb;11(2):559–567. doi: 10.1002/j.1460-2075.1992.tb05087.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ryu S. H., Cho K. S., Lee K. Y., Suh P. G., Rhee S. G. Purification and characterization of two immunologically distinct phosphoinositide-specific phospholipases C from bovine brain. J Biol Chem. 1987 Sep 15;262(26):12511–12518. [PubMed] [Google Scholar]
- Rönnstrand L., Mori S., Arridsson A. K., Eriksson A., Wernstedt C., Hellman U., Claesson-Welsh L., Heldin C. H. Identification of two C-terminal autophosphorylation sites in the PDGF beta-receptor: involvement in the interaction with phospholipase C-gamma. EMBO J. 1992 Nov;11(11):3911–3919. doi: 10.1002/j.1460-2075.1992.tb05484.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Savage C. R., Jr, Cohen S. Epidermal growth factor and a new derivative. Rapid isolation procedures and biological and chemical characterization. J Biol Chem. 1972 Dec 10;247(23):7609–7611. [PubMed] [Google Scholar]
- Senogles S. E., Spiegel A. M., Padrell E., Iyengar R., Caron M. G. Specificity of receptor-G protein interactions. Discrimination of Gi subtypes by the D2 dopamine receptor in a reconstituted system. J Biol Chem. 1990 Mar 15;265(8):4507–4514. [PubMed] [Google Scholar]
- Sorkin A., Helin K., Waters C. M., Carpenter G., Beguinot L. Multiple autophosphorylation sites of the epidermal growth factor receptor are essential for receptor kinase activity and internalization. Contrasting significance of tyrosine 992 in the native and truncated receptors. J Biol Chem. 1992 Apr 25;267(12):8672–8678. [PubMed] [Google Scholar]
- Sorkin A., Waters C., Overholser K. A., Carpenter G. Multiple autophosphorylation site mutations of the epidermal growth factor receptor. Analysis of kinase activity and endocytosis. J Biol Chem. 1991 May 5;266(13):8355–8362. [PubMed] [Google Scholar]
- Stoscheck C. M., Carpenter G. Characteristics of antibodies to the epidermal growth factor receptor-kinase. Arch Biochem Biophys. 1983 Dec;227(2):457–468. doi: 10.1016/0003-9861(83)90476-9. [DOI] [PubMed] [Google Scholar]
- Suh P. G., Ryu S. H., Choi W. C., Lee K. Y., Rhee S. G. Monoclonal antibodies to three phospholipase C isozymes from bovine brain. J Biol Chem. 1988 Oct 5;263(28):14497–14504. [PubMed] [Google Scholar]
- Vega Q. C., Cochet C., Filhol O., Chang C. P., Rhee S. G., Gill G. N. A site of tyrosine phosphorylation in the C terminus of the epidermal growth factor receptor is required to activate phospholipase C. Mol Cell Biol. 1992 Jan;12(1):128–135. doi: 10.1128/mcb.12.1.128. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wahl M. I., Jones G. A., Nishibe S., Rhee S. G., Carpenter G. Growth factor stimulation of phospholipase C-gamma 1 activity. Comparative properties of control and activated enzymes. J Biol Chem. 1992 May 25;267(15):10447–10456. [PubMed] [Google Scholar]
- Wahl M. I., Nishibe S., Suh P. G., Rhee S. G., Carpenter G. Epidermal growth factor stimulates tyrosine phosphorylation of phospholipase C-II independently of receptor internalization and extracellular calcium. Proc Natl Acad Sci U S A. 1989 Mar;86(5):1568–1572. doi: 10.1073/pnas.86.5.1568. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Whittaker J., Okamoto A. K., Thys R., Bell G. I., Steiner D. F., Hofmann C. A. High-level expression of human insulin receptor cDNA in mouse NIH 3T3 cells. Proc Natl Acad Sci U S A. 1987 Aug;84(15):5237–5241. doi: 10.1073/pnas.84.15.5237. [DOI] [PMC free article] [PubMed] [Google Scholar]