UniProtSummary | Function:ReceptorforEGF,butalsoforothermembersoftheEGFfamily,asTGF-alpha,amphiregulin,betacellulin,heparin-bindingEGF-likegrowthfactor,GP30andvacciniavirusgrowthfactor.Isinvolvedinthecontrolofcellgrowthanddifferentiation.PhosphorylatesMUC1inbreastcancercellsandincreasestheinteractionofMUC1withC-SRCandCTNNB1/beta-catenin.Ref.31
Isoform:2/truncatedisoformmayactasanantagoNIST.Ref.31
Catalyticactivity:ATP+a[protein]-L-tyrosine=ADP+a[protein]-L-tyrosinephosphate.
Subunitstructure:BindsRIPK1.CBLinteractswiththeautophosphorylatedC-terminaltailoftheEGFreceptor.PartofacomplexwithERBB2andeitherPIK3C2AorPIK3C2B.TheautophosphorylatedforminteractswithPIK3C2B,maybeindirectly.InteractswithPELP1.BindsMUC1.Ref.31Ref.25Ref.29Ref.30Ref.35
Subcellularlocation:Cellmembrane;Single-passtypeImembraneprotein.
Isoform:2:Secreted.
Tissuespecificity:Ubiquitouslyexpressed.Isoform2isalsoexpressedinovariancancers.Ref.38
Post-translationalmodification:PhosphorylationofSer-695ispartialandoccursonlyifThr-693isphosphorylated.Ref.16Ref.24Ref.28Ref.32Ref.33Ref.34Ref.36Ref.37Ref.39Ref.40Ref.41Ref.42 MonoubiquitinatedandpolyubiquitinateduponEGFstimulation;whichdoesnotaffecttyrosinekinaseactivityorsignalingcapacitybutmayplayaroleinlysosomaltargeting.Polyubiquitinlinkageismainlythrough"Lys-63",butlinkagethrough"Lys-48","Lys-11"and"Lys-29"alsooccur.
Involvementindisease:DefectsinEGFRareassociatedwithlungcancer[MIM:211980].
Miscellaneous:BindingofEGFtothereceptorleadstodimerization,internalizationoftheEGF-receptorcomplex,inductionofthetyrosinekinaseactivity,stimulationofcellDNAsynthesis,andcellproliferation.
Sequencesimilarities:Belongstotheproteinkinasesuperfamily.Tyrproteinkinasefamily.EGFreceptorsubfamily. Contains1proteinkinasedomain. |