Cat. No.
MABL-1817
Application
agonist, IP, ELISA, FC
Isotype
Engineer antibody
Species Reactivity
Human
Clone No.
FRP5
From
Recombinant Antibody
Specificity
This antibody recognizes an extracellular epitope of human HER2.
Alternative Names
CD340; NEU; HER-2; HER-2/neu; ERBB2; MLN 19; NGL; TKR1; erb-b2 receptor tyrosine kinase 2; Receptor tyrosine-protein kinase erbB-2; Metastatic lymph node gene 19 protein; Proto-oncogene Neu; Proto-oncogene c-ErbB-2; Tyrosine kinase-type cell surface receptor HER2
UniProt
P04626
Immunogen
The original antibody was generated by immunizing female BALB/c mice with intact SKBR3 human breast tumor cells.
Application Notes
This antibody has been successfully used to immunoprecipitate p185 erbB-2 protein from human SKBR3 breast tumor cell lysates and human erbB-2-transfected mouse HCll R111 cells. Furthermore, the binding of this antibody to surface-expressed HER2 on SKBR3 cells was determined using flow cytometry. Treatment with this antibody led to a rapid increase in the phosphotyrosine content of the erbB-2 protein in various cell lines. The binding of this antibody stimulated the turnover of the erbB-2 protein but did not stimulate DNA synthesis in HCll R111 cells. Therefore, it can be inferred that this antibody acts as a partial ligand agonist (Harwerth et al., 1992; PMID: 1353079). The binding affinity of this antibody for human HER2 was determined using ELISA (Wels et al., 1992; PMID: 1369487). The scFv version of this antibody was used in the generation of scFv(FRP5)-ETA, an antibody-exotoxin recombinant protein and tested for its anti-tumor activity (Harwerth et al., 1993; PMID: 7903153). ScFv(FRP5)-ETA displayed potent antitumoral activity in vitro against a wide range of established and primary human tumor cells, including breast and ovarian carcinomas, squamous cell carcinomas and prostate carcinomas. scFv(FRP5)- ETA also effectively inhibited the in vivo growth of human tumor xenografts and murine and rat tumor cells stably transfected with human c-erbB2 constructs (von Minckwitz et al., 2005; PMID: 16168106).
Antibody First Published
Harwerth et al. Monoclonal antibodies against the extracellular domain of the erbB-2 receptor function as partial ligand agonists. J Biol Chem. 1992 Jul 25;267(21):15160-7. PMID:1353079
Note on publication
The original artucle describes the generation and characterization of four antibodies against extracellular domain of human HER2.
Size
100 μg Purified antibody.
Concentration
1 mg/ml.
Purification
Protein A affinity purified
Buffer
PBS with 0.02% Proclin 300.
Storage Recommendation
Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at - 20⁰C.




