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Product Details
A42494
Applications
Tested Dilution
Publications
Product Specifications
Species
Human
Expression System
HEK293 cells
Amino acid sequence
Human ErbB2, amino acids Met1-Thr652 (Accession # NP_004439.2) with a C-terminal Fc-tag
Tag
Fc-tag
Molecular weight
96.1 kDa
Class
Recombinant
Type
Protein
Purity
≥90 % as determined by SDS-PAGE. ≥90 % as determined by SEC-HPLC.
Endotoxin concentration
<1.0 EU/µg
Activity
1. Immobilized Human ErbB2 Fc Chimera Recombinant Protein at 2 µg/mL (100 µL/well) can bind Anti-Erbb2 Antibody (Trastuzumab), the EC50 is 16-80 ng/mL.
2. Measured by its ability to block anti-ErbB2 mediated inhibition of BT474 human breast ductal carcinoma cell proliferation. The ED50 for this effect is 0.5-3 µg/mL in the presence of 0.6 µg/mL Anti-ErbB2/Her2 Monoclonal Antibody.
2. Measured by its ability to block anti-ErbB2 mediated inhibition of BT474 human breast ductal carcinoma cell proliferation. The ED50 for this effect is 0.5-3 µg/mL in the presence of 0.6 µg/mL Anti-ErbB2/Her2 Monoclonal Antibody.
Conjugate
Form
Lyophilized
Purification
purified
Storage buffer
PBS, pH 7.4, with 5% mannitol, 5% trehalose, 0.01% Tween 80
Contains
no preservative
Storage conditions
-20°C or -80°C if preferred
Shipping conditions
Ambient
Product Specific Information
Reconstitution: Dissolve the protein in sterile double distilled water to a concentration of 0.2 mg/mL or lower. It is recommended that the protein be aliquoted and be used as soon as possible. Store aliquots under sterile conditions at -20°C. Avoid repeated freeze-thaw cycles.
Target Information
ErbB2 (HER2) is a receptor tyrosine kinase that is overexpressed in some breast tumors. Herceptin, used in treatment of metastatic Her2-positive cancer, is monoclonal antibody targeting this kinase.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: c-erb B2/neu protein; CD antigen CD340; CD340; erb-b2; erbb 2; ErbB2 (pTyr1139); ErbB2 (pY1139); ErbB2 phospho Y1139; her 2; herstatin; human epidermal growth factor receptor 2; metas; Metastatic lymph node gene 19 protein; MLN 19; neuro/glioblastoma derived oncogene homolog; neuroblastoma/glioblastoma derived oncogene homolog; p185erbB2; phospho ErbB2; Proto-oncogene c-ErbB-2; Proto-oncogene Neu; Receptor tyrosine-protein kinase erbB-2; Tyrosine kinase-type cell surface receptor HER2; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; v-erb-b2 avian erythroblastic leukemia viral oncoprotein 2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog
Gene Aliases: CD340; ERBB2; HER-2; HER-2/neu; HER2; MLN 19; MLN19; NEU; NGL; TKR1
UniProt ID: (Human) P04626
Entrez Gene ID: (Human) 2064
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