Ustekinumab antibody | AbD18334

Human anti Ustekinumab

Product Type
Monoclonal Antibody
Clone
AbD18334
Isotype
HuCAL Fab monovalent
Specificity
Ustekinumab

Product Code Applications Pack Size List Price Your Price Qty
HCA209
Datasheet Datasheet Datasheet
SDS Safety Datasheet SDS
E 0.1 mg loader
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loader
HCA209G
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SDS Safety Datasheet SDS
E 1 mg loader
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Human Anti-Ustekinumab Antibody, clone AbD18334 is a paratope specific, high affinity, anti-idiotypic antibody that specifically recognizes the monoclonal antibody drug ustekinumab and inhibits binding to its target. The antibody can be used to measure the level of free ustekinumab and biosimilar products in bioanalytical and patient monitoring assays.

A pair of anti-ustekinumab antibodies can be used to develop a pharmacokinetic (PK) bridging assay to measure free drug. This antibody, in monovalent Fab format, is recommended as a capture antibody, paired with an HRP conjugated Anti-ustekinumab Antibody in full immunoglobulin format, clone AbD17827_hIgG1 (HCA210) as the detection antibody.

Ustekinumab (Stelara) is a fully human monoclonal antibody drug (IgG1/kappa) that has been approved in US, Canada, and Europe for the treatment of plaque psoriasis and psoriatic arthritis. The FDA approved the medication for the treatment of moderate-severe Crohn's disease in 2016. The drug blocks interleukin IL-12 and IL-23 by binding with high affinity and specificity to the p40 subunit, preventing the binding of these two cytokines to T-lymphocytes, and thereby disrupting the proinflammatory pathway.

View a summary of all anti-ustekinumab antibodies

Product Form
A monovalent human recombinant Fab (kappa light chain) selected from the HuCAL® phage display library, expressed in E. coli. The antibody is tagged with a DYKDDDDK tag and a HIS-tag (HHHHHH) at the C-terminus of the antibody heavy chain.
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.01% Thiomersal
Immunogen
Ustekinumab
Affinity
The monovalent intrinsic affinity of AbD18334 was measured as KD = 0.4 nM by real time, label free molecular interaction analysis on immobilized ustekinumab
Approx. Protein Concentrations
Pack Size: 0.1 mg
Antibody concentration 0.5 mg/ml
Pack Size: 1 mg
Antibody concentration 1.0 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 in an indirect ELISA or as a capture antibody in a sandwich ELISA together with HCA210P as the detection reagent.
Protocol: PK bridging ELISA to measure free drug

Description Product Code Applications Pack Size List Price Your Price Quantity
Mouse anti Histidine Tag:Alk.Phos. MCA1396A E WB 0.1 mg loader
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Description Mouse anti Histidine Tag:Alk.Phos.
Mouse anti Histidine Tag:Biotin MCA1396B E WB 0.1 mg loader
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Description Mouse anti Histidine Tag:Biotin
Rat anti DYKDDDDK Tag:HRP MCA4764P E P WB 0.1 mg loader
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loader
Description Rat anti DYKDDDDK Tag:HRP
Mouse anti Penta Histidine Tag:HRP MCA5995P E WB 125 µl loader
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loader
Description Mouse anti Penta Histidine Tag:HRP

Synonyms
Stelara®
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"