膜杰作
Star Staining
分子别名（Synonym）
EGFR,ERBB,ERBB1,HER1,PIG61,mENA
表达区间及表达系统（Source）
Mouse EGF R, His Tag (EGR-M5224) is expressed from human 293 cells (HEK293). It contains AA Leu 25 - Ser 647 (Accession # Q01279-1).
Predicted N-terminus: Leu 25
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 71.2 kDa. The protein migrates as 86-110 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Mouse EGF R, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of Mouse EGF R, His Tag (Cat. No. EGR-M5224) is more than 90% and the molecular weight of this protein is around 85-110 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Mouse EGF, Fc Tag (Cat. No. EGF-M5265) at 2 μg/mL (100 μL/well) can bind Mouse EGF R, His Tag (Cat. No. EGR-M5224) with a linear range of 0.02-0.313 μg/mL (QC tested).
Protocol
活性（Bioactivity）-SPR
Captured Mouse EGF R, His Tag (Cat. No. EGR-M5224) on CM5 Chip via anti-His antibody can bind Mouse EGF, Fc Tag (Cat. No. EGF-M5265) with an affinity constant of 5.44 nM as determined in SPR assay (Biacore T200) (Routinely tested).
Protocol
背景（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. The epidermal growth factor receptor 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). Mutations affecting EGFR expression or activity could result in cancer.
