Recombinant Human EGFR Protein (Leu 25 - Ser 645), His-tagged, low endotoxin

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Recombinant Human EGFR Protein (Leu 25 - Ser 645), His-tagged, low endotoxin

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Cat.No. : EGFR-338H
Product Overview : Recombinant Human EGFR Protein, His-tagged, low endotoxin is expressed from human 293 cells (HEK293). It contains AA Leu 25 - Ser 645 (Accession # P00533-1). Predicted N-terminus: Leu 25. This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 70.5kDa. The protein migrates as 110-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Source : HEK293
Species : Human
Tag : His
Form : Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Bio-activity : Immobilized Cetuximab at 2 μg/mL (100 μL/well) can bind Recombinant Human EGFR Protein, His-tagged, low endotoxin with a linear range of 0.8-6 ng/mL (QC tested).
Immobilized Erbitux on CM5 Chip via anti-human Fc IgG, can bind Recombinant Human EGFR Protein, His-tagged, low endotoxin with an affinity constant of 0.492 nM as determined in SPR assay (Biacore T200) (Routinely tested).
Molecular Mass : 70.5kDa
Protein length : Leu 25 - Ser 645
Endotoxin : Less than 0.01 EU per μg by the LAL method.
Purity : >95% as determined by SDS-PAGE.
Notes : Please avoid repeated freeze-thaw cycles.
Stability : No activity loss is observed after storage at:
4-8 centigrade for 12 months in lyophilized state;
-70 centigrade for 3 months under sterile conditions after reconstitution.
Storage : For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.
Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.
Figure :

Gene Name : EGFR epidermal growth factor receptor [ Homo sapiens ]
Official Symbol : EGFR
Synonyms : EGFR; epidermal growth factor receptor; ERBB1; ERBB; HER1; mENA; PIG61;
Gene ID : 1956
mRNA Refseq : NM_005228
Protein Refseq : NP_005219
MIM : 131550
UniProt ID : P00533

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