Pubmed abstracts for Protein-Protein Interaction search result :


Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.58380502
Immunocytochemical studies demonstrated that phospholipase C gamma 1 co localizes with the epidermal growth factor receptor and also filamentous actin at the membrane ruffles . 0.58380502^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.52690249
The epidermal growth factor receptor is associated with phospholipase C gamma 1 in meningiomas . 0.52690249^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.72584264
EGF also stimulated PLC gamma 1 translocation from cytosol to a cytoskeletal compartment where PLC gamma 1 interacted with EGFR . 0.72584264^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.52466714
The EGFR specifically activates phospholipase C gamma 1 ( PLC gamma 1 ) . 0.52466714^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.58043054
In addition , immunoreactive PLC gamma 1 colocalizes with immunoreactive epidermal growth factor receptor in both normal and hyperproliferative epidermis . . 0.58043054^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
These results demonstrate that the presence of the SH 2 domain in PLC gamma 1 lowers the apparent Km ( increases the affinity ) of substrate phosphorylation by the EGFR , thereby facilitating PLC gamma 1 phosphorylation and activation . . ^^^ Presence of SH 2 domains of phospholipase C gamma 1 enhances substrate phosphorylation by increasing the affinity toward the epidermal growth factor receptor . src homology region 2 and 3 ( SH 2 and SH 3 ) domains are conserved noncatalytic regions originally described in cytoplasmic tyrosine kinases and subsequently identified in phospholipase C gamma 1 ( PLC gamma 1 ) , GTPase activating protein of ras , and other signaling proteins . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Under these conditions , neither the epidermal growth factor receptor nor phospholipase C gamma 1 was autophosphorylated . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Direct analysis of the binding of Src homology 2 domains of phospholipase C to the activated epidermal growth factor receptor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Activity of the epidermal growth factor receptor and phospholipase C gamma 1 in heat stressed fibroblasts and A 431 cells . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
All carcinomas in which tyrosine phosphorylated PLC gamma 1 was present also expressed detectable levels of the epidermal growth factor receptor or erbB 2 , two tyrosine kinases known to phosphorylate this enzyme . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Phosphorylation of phospholipase C gamma 1 by the epidermal growth factor receptor tyrosine kinase overcomes the inhibitory effect of profilin and results in an effective activation of phospholipase C gamma 1 . . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
To analyze the functional role of this pathway in T cells , we expressed an epidermal growth factor receptor ( EGF ) or platelet derived growth factor ( PDGF ) receptor ( EGF R or PDGF R ) , both of which are known to directly activate PLC gamma 1 in fibroblasts , into a murine T cell hybridoma . ^^^ While EGF stimulation did not either cause phosphorylation of PLC gamma 1 or induce Ca2+ mobilization in the EGF R transfectant in this system , PDGF treatment induced tyrosine phosphorylation of PLC gamma 1 and Ca2+ mobilization in the PDGF R transfectant . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Activated epidermal growth factor receptor ( EGFR ) undergoes autophosphorylation on several cytoplasmic tyrosine residues , which may then associate with the src homology 2 ( SH 2 ) domains of effector proteins such as phospholipase C gamma 1 ( PLC gamma 1 ) . ^^^ Specific phosphotyrosine ( pTyr ) modified EGFR fragment peptides can inhibit this intermolecular binding between activated EGFR and a tandem amino and carboxy terminal ( N / C ) SH 2 protein construct derived from PLC gamma 1 . ^^^ In this study , we further explored the molecular recognition of phosphorylated EGFR 988 998 ( Asp Ala Asp Glu pTyr Leu Ile Pro Gln Gln Gly , 1 ) by PLC gamma 1 N / C SH 2 in terms of singular Ala substitutions for amino acid residues N and C terminal to the pTyr ( P site ) of phosphopeptide 1 . ^^^ Comparison of the extent to which these phosphopeptides inhibited binding of PLC gamma 1 N / C SH 2 to activated EGFR showed the critical importance of amino acid side chains at positions P+2 ( Ile 994 ) , P+3 ( Pro 995 ) , and P+4 ( Gln 996 ) . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
The kinetics of the EGF receptor ( EGFR ) autophosphorylation and of the phosphorylation by EGFR of a fusion protein ( Fp ( SH 2 ) ) derived from PLC gamma 1 with two SH 2 domains were studied employing purified EGFR or membrane bound preparations of native and truncated EGFR . ^^^ Kinetics of phosphorylation of the SH 2 containing domain of phospholipase C gamma 1 by the epidermal growth factor receptor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Chronic pancreatitis is associated with increased concentrations of epidermal growth factor receptor , transforming growth factor alpha , and phospholipase C gamma . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
The EGFR substrate , phospholipase C gamma 1 , was tyrosine phosphorylated in fetal kidneys but not adult , and a greater proportion was membrane associated in fetal kidneys , consistent with activation of phospholipase C gamma 1 . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Peptide 1 , derived from the Tyr 992 site , inhibited binding of a 35S labelled fusion protein containing both of the SH 2 domains from PLC gamma 1 to the phosphorylated EGFR with an IC 50 of 8 microM . ^^^ Inhibition of binding of phospholipase C gamma 1 SH 2 domains to phosphorylated epidermal growth factor receptor by phosphorylated peptides . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Non catalytic activation of phospholipase C gamma 1 in vitro by epidermal growth factor receptor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
The in vivo interaction with the EGFr / p185c neu heterodimer of several signal transduction proteins , including phospholipase C gamma 1 ( PLC gamma 1 ) , the p 85 subunit of phosphotidylinositol 3 kinase , the ras GTPase activating protein , SHC , NCK , p72RAF , and the tyrosine phosphatase SHPTP 2 , was measured by coimmunoprecipitation . ^^^ In addition , the EGF induced phosphorylation of GAP , p 85 , and PLC gamma 1 did not correlate with the dominant negative action of p185K757M on EGFr function . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Design of a potent peptide inhibitor of the epidermal growth factor receptor tyrosine kinase utilizing sequences based on the natural phosphorylation sites of phospholipase C gamma 1 . ^^^ Peptides that possess primary sequences identical to segments surrounding the natural phosphorylation sites of phospholipase C gamma 1 ( i . e . , tyrosines 472 , 771 , 783 , and 1284 ) have been synthesized and evaluated with respect to substrate kinetics for the epidermal growth factor receptor tyrosine kinase . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Photoaffinity labeling and site directed mutagenesis have been used to identify amino acid residues of the phospholipase C gamma 1 ( PLC gamma 1 ) N terminal SH 2 domain involved in recognition of the activated epidermal growth factor receptor ( EGFR ) . ^^^ Identification of amino acids in the N terminal SH 2 domain of phospholipase C gamma 1 important in the interaction with epidermal growth factor receptor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Phospholipase C gamma 1 ( PLC gamma 1 ) , a tyrosine kinase substrate of the epidermal growth factor receptor ( EGFR ) hydrolyzes phosphatidylinositol 4 , 5 bisphosphate to products that may serve as mediators of growth and development . ^^^ METHODS : Immunodetection was used to compare the expression and tyrosine phosphorylation state of PLC gamma 1 , EGFR , phosphatidylinositol 3 kinase ( PI 3 kinase ) , ras guanosine triphosphatase activating protein ( GAP ) , and src homologous collagen like protein ( SHC ) in the postnatal rat intestine . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Epidermal growth factor receptor ( EGFR ) induced tyrosine phosphorylation of PLC gamma 1 resulted in resistance to cleavage by caspase 3 in vitro . ^^^ Furthermore , cleaved PLC gamma 1 could not be tyrosine phosphorylated by EGFR in vitro . ^^^ Epidermal growth factor receptor ( EGFR ) induced tyrosine phosphorylation of PLC gamma 1 resulted in resistance to cleavage by caspase 3 in vitro . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Tyrosine phosphorylation of EGF receptor ( EGFR ) , Shc , and phospholipase C gamma 1 ( PLC gamma ) , and growth factor receptor binding protein 2 ( Grb 2 ) coprecipitation with EGFR and Shc were analyzed by Western blotting . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
In the nontransformed intestinal cell line IEC 6 , expression of EGFR , Src homology and collagen protein ( SHC ) , phospholipase C gamma 1 ( PLC gamma ) , and their tyrosine phosphorylation in response to EGF was assayed by immunoblot . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Exposure of A 431 cells to ONOO markedly reduced the kinetics of tyrosine phosphorylation of a downstream EGFR substrate , phospholipase C gamma 1 , which may be related to covalent alterations in EGFR . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
OBJECTIVE : Phospholipase C ( PLC ) gamma is a cytosolic enzyme activated by several growth factor ( GF ) receptors ( epidermal GF receptor [ EGFR ] , platelet derived GF receptor , and insulin like GF 1 receptor ) , and its activation is associated with increased cell motility ( but not cell proliferation ) in nonglioma cell lines . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
To determine whether EGFR occupancy in endosomes might also affect short term signaling events , we examined activation of the phospholipase C gamma 1 ( PLC gamma 1 ) pathway , an event shown to be essential for growth factor induced cell motility . ^^^ In contrast to PIP 2 hydrolysis , PLC gamma 1 tyrosine phosphorylation correlated linearly with the total level of Tyr ( P ) EGFR stimulated by either ligand , indicating that the functional deficiency of internal EGFR can not be attributed to an inability to interact with and phosphorylate signaling proteins . ^^^ We conclude that EGFR signaling through the PLC pathway is spatially restricted at a point between PLC gamma 1 phosphorylation and PIP 2 hydrolysis , perhaps because of limited access of EGFR bound PLC gamma 1 to its substrate in endocytic trafficking organelles . . ^^^ Effect of epidermal growth factor receptor internalization on regulation of the phospholipase C gamma 1 signaling pathway . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
The two SH 2 ( Src homology domain 2 ) domains present in phospholipase C gamma 1 ( PLC gamma 1 ) were assayed for their capacities to recognize the five autophosphorylation sites in the epidermal growth factor receptor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
As an additional check for functional activity of the EGF R , an abundant substrate for this receptor , PLC gamma 1 was also evaluated following EGF treatment . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Aberrant signaling by receptors of the erbB network up regulates a number of signaling pathways , which include phospholipase C gamma 1 , Ras Raf mitogen activated protein / extracellular signal regulated kinase kinase mitogen activated protein kinase , phosphatidylinositol 3 ' kinase and its target , the serine / threonine kinase Akt , stress activated protein kinases , signal transducers and activators of transcription , and c Jun NH ( 2 ) terminal kinase ( JNK ) . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
These results , taken together , suggest that autophosphorylation of EGFR at tyrosine 992 and the subsequent PLC gamma 1 activation transduce the signal to Rac 1 to induce membrane ruffle formation . . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Overexpression of Cbl attenuated EGF induced tyrosine phosphorylation and the subsequent activation of PLC gamma 1 by interfering competitively with the interaction between PLC gamma 1 and EGFR . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
OBJECTIVE : To investigate the dynamic characteristics of lipid phosphatidylinositol ( 4 , 5 ) bisphosphate ( PIP ( 2 ) ) in plasma membrane hydrolyzed by phospholipase C gamma 1 in epidermal growth factor receptor ( EGFR ) mediated signal pathway . ^^^ Mathematical model of epidermal growth factor receptor mediated lipid phosphatidylinositol ( 4 , 5 ) bisphosphate hydrolyzation by phospholipase C gamma 1 activity ] . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Phospholipase C gamma 1 is a guanine nucleotide exchange factor for dynamin 1 and enhances dynamin 1 dependent epidermal growth factor receptor endocytosis . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Both phospholipase ( PL ) C gamma 1 and Akt ( protein kinase B ; PKB ) are signaling proteins that play significant roles in the intracellular signaling mechanism used by receptor tyrosine kinases , including epidermal growth factor ( EGF ) receptor ( EGFR ) . ^^^ EGFR activates PLC gamma 1 directly and activates Akt indirectly through phosphatidylinositol 3 kinase ( PI3K ) . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Molecular mechanisms between DAG , PIP 2 , EGFR and phosphatidylinositol transfer protein ( PITP ) were explained successfully , and positive cooperativity which existed between phospholipase C gamma 1 ( PLC gamma 1 ) and PIP 2 was also explained . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
The gastric mucosa was assayed for EGF R Tyr k activity and tyrosine phosphorylation and expression of EGF R , phospholipase C ( PLC ) activity and relative concentration and tyrosine phosphorylation of PLC gamma 1 , as well as transforming growth factor alpha ( TGF alpha ) levels . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Lastly , anti sense oligonucleotides ( 20 microM ) to PLC gamma 1 reduced both responses in NR 6 cells expressing wild type EGFR . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Phosphorylation of PLC gamma 1 on tyrosine residues could not be detected in tumor promoter treated mouse epidermis when the phosphotyrosine content of the EGFr was elevated or in cultured keratinocytes exposed to exogenous EGF . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
In terms of epidermal growth factor receptor activation and internalization , or growth factor induction of mitogen activated protein kinase , c fos , or DNA synthesis in quiescent cells , PLcg 1 ( / ) cells respond equivalently to PLcg 1 ( + / + ) cells . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
In parallel , ZD 1839 blocked autophosphorylation of EGFR and prevented activation of PLC gamma 1 , ERK MAP kinases and PKB / Akt by EGF . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
EGF stimulation of EGF receptor ( EGFR ) overexpressing cells resulted in long term PLC gamma 1 tyrosine phosphorylation and sustained levels of inositol 1 , 4 , 5 triphosphate ( IP 3 ) and diacylglycerol ( DAG ) producing sinusoidal calcium oscillations . ^^^ In contrast , c erbB 2 / EGFR expressing cells displayed baseline transient calcium oscillations after EGF treatment due to short term PLC gamma 1 tyrosine phosphorylation and short term IP 3 and DAG turnover . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Adhesion to fibronectin induced PLC gamma 1 tyrosine phosphorylation that was inhibited by a Src kinase inhibitor , but not an epidermal growth factor receptor kinase inhibitor . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
A 120 kDa protein fragment of nuclear PLC gamma 1 is stimulated in vivo by epidermal growth factor nuclear signaling coincident with the time course of nuclear membrane epidermal growth factor receptor activation . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Substitution of the phospholipase Cgamma 1 ( PLCgamma 1 ) binding site of the EGFR by the PLCgamma binding domain of Trk renders the EGFR induced Ca2+ influx insensitive to the expression of Asn 17 Ha Ras , whereas the Ca2+ signal induced by Trk carrying the PLC binding site of EGFR is Ras dependent and abrogated by the dominant negative Ras mutant . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
LPA was found to induce coupling of PLCgamma 1 to the EGFR by a mechanism involving a G ( alphai ) protein , in the absence of tyrosine phosphorylation of both PLCgamma and the EGFR . ^^^ These data show a cross talk between LPA and EGF limited to a branch of EGFR mediated signaling , which may be explained by a LPA induced , G ( alphai ) protein mediated translocation of PLCgamma 1 to EGFR in the absence of detectable tyrosine phosphorylation of both proteins . . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
This observation could be explained by the fact that the PLCgamma 1 association sites in the EGFR , tyrosine residues 992 and 1173 , were phosphorylated to a lower degree when the receptor was stimulated with EGF dextran as compared to with EGF . . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Intraperitoneal injection of epidermal growth factor ( EGF ) into mice resulted in the phosphorylation of liver nuclei phospholipase Cgamma 1 ( PLCgamma 1 ) at the tyrosine , coincident with the time course of nuclear membrane epidermal growth factor receptor ( EGFR ) activation . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Here we provide evidence that in the COS 7 cell model EGFR transactivation via the muscarinic M 2 receptor ( M2R ) is independent of MMPs and results in an incomplete EGFR signalling including ERK and Akt but not PLCgamma 1 . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Here we provide evidence that transactivation of EGFR by the beta 2 adrenergic receptor ( beta 2 AR ) is independent of MMPs and results in an incomplete downstream signalling involving extracellular signal activated kinase ( ERK ) but not PLCgamma 1 and Akt . ^^^ In contrast , beta 2 AR has the ability to activate PLCgamma 1 when the EGFR is primed either by co stimulation with EGF or by increased basal activity due to over expression . ^^^ In that way but not via the beta 2 AR mediated transactivation the EGFR docking sites pY 992 and pY 1173 may be generated which are critical for PLCgamma 1 . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Phospholipase Cgamma 1 ( PLCgamma 1 ) contributes to tumor cell invasion in experimental systems when activated by the epidermal growth factor receptor ( EGFR ) . ^^^ We hypothesized that EGFR overexpression in HNSCC mediates invasion via PLCgamma 1 . ^^^ On EGFR ligand stimulation , phosphorylation of PLCgamma 1 increased in all of the HNSCC cell lines tested ( 4 of 4 ) . ^^^ In the presence of EGFR specific tyrosine kinase inhibitor ( PD 153035 ) or an anti EGFR antibody ( C 225 ) , PLCgamma 1 activation was abrogated indicating that PLCgamma 1 was downstream of EGFR . ^^^ Thus , PLCgamma 1 may mediate invasion and metastasis downstream of EGFR in HNSCC . . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
Depletion of cholesterol by methyl beta cyclodextrin disrupted the raft localization of EGFR and Src , as well as bradykinin induced translocation of PLCgamma 1 . ^^^
Interacting proteins: P19174 and P00533 Pubmed SVM Score :0.0
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