Trastuzumab antibody | AbD25279

Human anti Trastuzumab (Drug/Target Complex)

Product Type
Monoclonal Antibody
Clone
AbD25279
Isotype
HuCAL Fab bivalent
Specificity
Trastuzumab
Region
DRUG/TARGET COMPLEX

Product Code Applications Pack Size List Price Your Price Qty
HCA263
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SDS Safety Datasheet SDS
E 0.1 mg loader
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loader
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Human anti trastuzumab drug/target complex, clone AbD25279, is a bivalent Fab antibody that specifically recognizes trastuzumab when in a complex with its target, the extracellular domain of the human epidermal growth factor receptor 2 (HER2, also known as ErbB2). It does not recognize the free drug or unbound HER2. The antibody can be used in pharmacokinetic (PK) antigen capture format assays to measure trastuzumab that has been captured via immobilized HER2. It is ideal for bioanalytical assays to measure the level of drug or biosimilar in complex with the HER2 target.

Trastuzumab (trade name Herceptin®) is a drug used in the treatment of HER2 positive breast cancer and other HER2 overexpressing cancers including HER2-positive metastatic cancers of the gastrointestinal tract. Trastuzumab binds to the HER2 (or c-erbB2) proto-oncogene, an EGF receptor-like protein found on 20-30% of breast cancer cells. The binding leads to antibody mediated (complement mediated) killing of the HER2 positive cells.

View a summary of all anti-trastuzumab antibodies

Product Form
A bivalent human recombinant Fab (lambda light chain) selected from the HuCAL® phage display library, expressed in E. coli. This Fab fragment is bivalent by dimerization of the bacterial alkaline phosphatase fusion protein. The antibody is tagged with a DYKDDDDK tag and a HIS-tag (HHHHHH) at the C-terminus of the antibody heavy chain.
Preparation
Metal chelate affinity chromatography
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.01% Thiomersal
Immunogen
Trastuzumab/ErbB2 complex
Affinity
The monovalent intrinsic affinity of this antibody was measured as KD=31 nM by real time, label-free molecular interaction analysis on immobilized trastuzumab/ErbB2 complex.
Approx. Protein Concentrations
Antibody concentration 0.5 mg/ml
Regulatory
For research purposes only
Guarantee
12 months from date of despatch
Acknowledgements
This product and/or its use is covered by claims of U.S. patents, and/or pending U.S. and non-U.S. patent applications owned by or under license to Bio-Rad Laboratories, Inc. See bio-rad.com/en-us/trademarks for details.
His-tag is a registered trademark of EMD Biosciences.

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
ELISA
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Technical Advice
Recommended protocols and further information about HuCAL recombinant antibody technology can be found in the HuCAL Antibodies Technical Manual
ELISA
This product may be used as a detection reagent in a direct or an indirect ELISA for trastuzumab captured by immobilized human ErbB2.
Protocol: PK antigen capture ELISA to measure bound drug exclusively

Description Product Code Applications Pack Size List Price Your Price Quantity
Hispec Assay Diluent BUF049A E IY 50 ml
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Description Hispec Assay Diluent
LYNX Rapid HRP Antibody Conjugation Kit LNK002P CJ 3 Conjugations For 400µg Antibody
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Description LYNX Rapid HRP Antibody Conjugation Kit
Rat anti DYKDDDDK Tag:HRP MCA4764P E P WB 0.1 mg loader
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Description Rat anti DYKDDDDK Tag:HRP
Mouse anti Penta Histidine Tag:HRP MCA5995P E WB 125 µl loader
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Description Mouse anti Penta Histidine Tag:HRP

References for Trastuzumab antibody

  1. Harth, S. et al. (2019) Generation by phage display and characterization of drug-target complex-specific antibodies for pharmacokinetic analysis of biotherapeutics.
    MAbs. 11 (1): 178-190.

Synonyms
HERCEPTIN®
Licensed Use
For in vitro research purposes and for commercial applications for the provision of in vitro testing services to support preclinical and clinical drug development. Any re-sale in any form or any other commercial application needs a written agreement with Bio-Rad.
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Please Note: All Products are "FOR RESEARCH PURPOSES ONLY"