Human soluble EGFR ELISA Kit PicoKine® (96 Tests). Quantitate Human EGFR in cell culture supeatants, serum, plasma (heparin, EDTA) and human milk. Sensitivity: 1pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
There is no detectable cross-reactivity with other relevant proteins.
Specificity
Natural and recombinant human EGFR
Subcellular Localization
Cell membrane; Single-pass type I membrane protein. Endoplasmic reticulum membrane; Single-pass type I membrane protein. Golgi apparatus membrane; Single-pass type I membrane protein. Nucleus membrane; Single-pass type I membrane protein. 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).
Sample Type
Cell culture supeatants, Serum, Plasma, Human milk
Anticoagulant
heparin or EDTA
Precision
Intra-Assay Precision
Inter-Assay Precision
Sample
1
2
3
1
2
3
n
16
16
16
24
24
24
Mean (pg/ml)
289
1634
5526
313
1731
5572
Standard deviation
13.58
81.7
408.92
18.78
102.12
417.9
CV (%)
4.7%
5%
7.4%
6%
5.9%
7.5%
Protein Function
Receptor 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 tu 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 ly 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.
Background
The epidermal growth factor receptor (EGFR; ErbB-1; HER1 in humans) is the cell-surface receptor for members of the epidermal growth factor family (EGF-family) of extracellular protein ligands.1 It is a member of the ErbB family of receptors, a subfamily of four closely related receptor tyrosine kinases: EGFR (ErbB-1), HER2/c-neu (ErbB-2), Her 3 (ErbB-3) and Her 4 (ErbB-4). EGFR exists on the cell surface and is activated by binding of its specific ligands, including epidermal growth factor and transforming growth factor alpha (TGFalpha). EGFR and its ligands are cell signaling molecules involved in diverse cellular functions, including cell proliferation, differentiation, motility, and survival, and in tissue development. Mutations that lead to EGFR over[removed]known as upregulation) or overactivity have been associated with a number of cancers, including lung cancer and glioblastoma multiforme. In this latter case a more or less specific mutation of EGFR, called EGFRvIII is often observed.
Reproducibility
Lots
Lot 1 (pg/ml)
Lot 2 (pg/ml)
Lot 3 (pg/ml)
Lot 4 (pg/ml)
Mean (pg/ml)
Standard Deviation
CV (%)
Sample 1
289
316
285
279
292
14.16
4.8%
Sample 2
1634
1690
1737
1686
1686
36.46
2.1%
Sample 3
5526
5048
5070
5056
5175
202.8
3.9%
*number of samples for each test n=16.
Notes
Material Required But Not Provided: Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer . Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.
Gene ID
1956
Gene Name
EGFR
UniProt ID
P00533
Protein Name
Epidermal growth factor receptor
Tissue Specificity
Ubiquitously expressed. Isoform 2 is also expressed in ovarian cancers. .
Sequence
Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)