EGFR, ERBB, ERBB1, HER1, PIG61, mENA
Recombinant Human EGFR MS Standard Protein, C13 and N15-labeled (EGFR / ErbB1, Heavy Labeled) Leu 25 - Ser 645 (Accession # NP_005219) was produced in human 293 cells (HEK293) with fully chemically defined cell culture medium to obtain >99% incorporation efficiency at ACROBiosystems.
EGFR / ErbB1, Heavy Labeled is fused with a polyhistidine tag at the C-terminus, and has a calculated MW of 69.5 kDa. The predicted N-terminus is Leu 25. DTT-reduced Protein migrates as 110-115 kDa in SDS-PAGE due to glycosylation.
EGFR / ErbB1, Heavy Labeled is labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine
Less than 1.0 EU per μg of the EGFR / ErbB1, Heavy Labeled by the LAL method.
>95% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose are added as protectants before lyophilization.
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See Certificate of Analysis for reconstitution instructions and specific concentrations.
Avoid repeated freeze-thaw cycles.
No activity loss was observed after storage at:
In lyophilized state for 1 year (4oC); After reconstitution under sterile conditions for 3 months (-70oC).
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.
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