Recombinant EGFR (Matuzumab Biosimilar) antibody (Extracellular Domain)

Catalog No. ABIN5668061

This anti-EGFR (Matuzumab Biosimilar) antibody is a Rabbit Chimeric antibody detecting EGFR (Matuzumab Biosimilar) in ELISA, Anta, BR, FACS, IF and WB. Suitable for Human.

Quick Overview for Recombinant EGFR (Matuzumab Biosimilar) antibody (Extracellular Domain) (ABIN5668061)

Target: EGFR (Matuzumab Biosimilar)

Antibody Type: Recombinant Antibody

Reactivity: Human

Host: Rabbit

Clonality: Chimeric

Conjugate: This EGFR (Matuzumab Biosimilar) antibody is un-conjugated

Application: ELISA, Antagonist (Anta), Blocking Reagent (BR), Flow Cytometry (FACS), Immunofluorescence (IF), Western Blotting (WB)

Product Details anti-EGFR (Matuzumab Biosimilar) Antibody

Binding Specificity: Extracellular Domain

Purpose: Anti-EGFR [Matuzumab], Rabbit IgG, kappa

Specificity: This antibody binds the extracellular domain III of the human EGFR and does not cross react with murine EGFR. It was also reported that residues S460/G461 in EGFR domain III are essential components of the epitope. This antibody binds at a site distinct from the EGF binding site, preventing conformational re-arrangement required for dimerization, a process essential for high-affinitiy ligand binding (Schmiedel, 2008). This antibody can only recognize the active form of EGFR. The antibody binds to both glyco- and aglyco receptor forms. EGFR is a transmembrane mitogenic glycoprotein with a cytoplasmically facing tyrosine kinase site which is activated by binding of the epidermal growth factor in the external domain. It also binds transforming growth factor alpha (TGFa). EGFR a member of the epidermal growth factor family and is closely related to receptor tyrosine kinases. This receptor tyrosine kinase binds ligands of the EGF family and activates signallying cascades to convert extracellular cues into appropriate cellular responses. Mutations that lead to EGFR overexpression (known as upregulation) or overactivity have been associated with a number of cancers, including lung cancer, anal cancers and glioblastoma multiforme as well as inflammatory diseases.

Characteristics:

Original Species of Ab: Human

Original Format of Ab: IgG1

Purification: Protein A affinity purified

Purity: > 98 % as determined by SDS-PAGE

Endotoxin Level: Endotoxin is < 1.0 EU/mg as determined by the LAL method

Immunogen: The parental mouse antibody was generated by immunizing BALB/c mice intraperitoneally with A431 cells in phosphate buffered saline (PBS). Later on the humanzied version of the antibody was created by grafting CDRs of the murine antibody onto human constant regions.

Isotype: IgG kappa

Application Details

Application Notes: This antibody is derived from a mouse parental clone mAb 425 which has demonstrated anti-tumor activity against solid tumors in phase I clinical trials. The binding characterization of this antibody to human EGFR was done using ELISA. This antibody was also found to bind human EGFR with a similar avidity as the parental mouse antibody 425 (PMID: 1798701). The parental mouse antibody 425 in combination with C225 (Cetuximab) reduced growth and survival of EGFR overexpressing MDA-MB-468 breast cancer cells more effectively than either antibody alone. The combination was also reported to effectively inhibited AKT and MAPK phosphorylation in MDA-MB-468 cell (PMID: 18424917). This antibody was used in a phase 1 study to investigate the safety and tolerability and to explore the pharmacokinetic and pharmacodynamic profile in patients with solid tumors that express EGFR (PMID: 14701780). This antibody has been used in various phase I studies alone or in combination with other therapeutic agents to treat patients with various type of cancers (PMID: 16533873, 16622465, 19238629). A study reported that the antitumor effects of matuzumab and cetuximab depend on inhibition of EGFR downstream signaling mediated by Akt or Erk rather than on inhibition of EGFR itself (PMID: 18033688).

Comment:

This chimeric rabbit antibody was made using the variable domain sequences of the original Human IgG1 format, for improved compatibility with existing reagents, assays and techniques.

Restrictions: For Research Use only

Handling

Concentration: 1 mg/mL

Buffer: PBS with 0.02 % Proclin 300.

Preservative: ProClin

Precaution of Use: This product contains ProClin: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Storage: 4 °C,-20 °C

Storage Comment: Store at 4°C for up to 3 months. For longer storage, aliquot and store at -20°C.

Target Details for EGFR (Matuzumab Biosimilar)

Target: EGFR (Matuzumab Biosimilar)

Background: ErbB-1, ERBB1, HER1, EGF, Epidermal growth factor receptor, Proto-oncogene c-ErbB-1, Receptor tyrosine-protein kinase erbB-1, EMD72000, mAb425, 425, mAb 425

UniProt: P00533