Product nameAnti-EGFR (phospho S671) antibody [EPR2257]
See all EGFR primary antibodies
DescriptionRabbit monoclonal [EPR2257] to EGFR (phospho S671)
SpecificityRecognises EGFR phosphorylated on serine 671 of the mature human isoform 1 (corresponding to S695 from the precursor form P00533-1/p170)
Tested applicationsSuitable for: WB, ICC/IF, Dot blotmore details
Unsuitable for: Flow Cyt,IHC-P or IP
Species reactivityReacts with: Human
corresponding to Human EGFR (phospho S671).
- A431 cell lysate treated with EGF
A trial size is available to purchase for this antibody.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 9% PBS, 40% Glycerol, 0.05% BSA, 50% Tissue culture supernatant
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab92629 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
WB: 1/1000 - 1/5000. Predicted molecular weight: 134 kDa.
Is unsuitable for Flow Cyt, IHC-P or IP.
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionReceptor tyrosine kinase binding ligands of the EGF family and activating several signaling cascades to convert extracellular cues into appropriate cellular responses. Known ligands include EGF, TGFA/TGF-alpha, amphiregulin, epigen/EPGN, BTC/betacellulin, epiregulin/EREG and HBEGF/heparin-binding EGF. Ligand binding triggers receptor homo- and/or heterodimerization and autophosphorylation on key cytoplasmic residues. The phosphorylated receptor recruits adapter proteins like GRB2 which in turn activates complex downstream signaling cascades. Activates at least 4 major downstream signaling cascades including the RAS-RAF-MEK-ERK, PI3 kinase-AKT, PLCgamma-PKC and STATs modules. May also activate the NF-kappa-B signaling cascade. Also directly phosphorylates other proteins like RGS16, activating its GTPase activity and probably coupling the EGF receptor signaling to the G protein-coupled receptor signaling. Also phosphorylates MUC1 and increases its interaction with SRC and CTNNB1/beta-catenin.
Isoform 2 may act as an antagonist of EGF action.
Tissue specificityUbiquitously expressed. Isoform 2 is also expressed in ovarian cancers.
Involvement in diseaseLung cancer
Inflammatory skin and bowel disease, neonatal, 2
Sequence similaritiesBelongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
Contains 1 protein kinase domain.
modificationsPhosphorylation at Ser-695 is partial and occurs only if Thr-693 is phosphorylated. Phosphorylation at Thr-678 and Thr-693 by PRKD1 inhibits EGF-induced MAPK8/JNK1 activation. Dephosphorylation by PTPRJ prevents endocytosis and stabilizes the receptor at the plasma membrane. Autophosphorylation at Tyr-1197 is stimulated by methylation at Arg-1199 and enhances interaction with PTPN6. Autophosphorylation at Tyr-1092 and/or Tyr-1110 recruits STAT3. Dephosphorylated by PTPN1 and PTPN2.
Monoubiquitinated and polyubiquitinated upon EGF stimulation; which does not affect tyrosine kinase activity or signaling capacity but may play a role in lysosomal targeting. Polyubiquitin linkage is mainly through 'Lys-63', but linkage through 'Lys-48', 'Lys-11' and 'Lys-29' also occurs. Deubiquitination by OTUD7B prevents degradation. Ubiquitinated by RNF115 and RNF126.
Methylated. Methylation at Arg-1199 by PRMT5 stimulates phosphorylation at Tyr-1197.
Cellular localizationSecreted and Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus membrane. Nucleus membrane. Endosome. Endosome membrane. Nucleus. In response to EGF, translocated from the cell membrane to the nucleus via Golgi and ER. Endocytosed upon activation by ligand. Colocalized with GPER1 in the nucleus of estrogen agonist-induced cancer-associated fibroblasts (CAF).
- Information by UniProt
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All lanes : Anti-EGFR (phospho S671) antibody [EPR2257] (ab92629) at 1/1000 dilution
Lane 1 : A431 cell lysate untreated
Lane 2 : A431 cell lysate treated with EGF
Lysates/proteins at 10 µg per lane.
All lanes : HRP labelled goat anti-rabbit at 1/2000 dilution
Predicted band size: 134 kDa
Primary antibody dilution: 1/1000
Secondary antibody: goat anti-rabbit IgG, (H+L), peroxidase conjugated
Secondary antibody dilution: 1/2500
Blocking & dilution buffer: 5% NFDM/TBST
Lane 1 sample: EGFR (pS671) phospho peptide
Lane 2 sample: EGFR non-phospho peptide
Exposure time: 3 minutes
Immunofluorescent staining of A431 cells using ab92629 at 1/100 dilution.
ab92629 has not yet been referenced specifically in any publications.