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Antibody MMAE Conjugation Kit (With VC-PAB Linkage)

  • Image 1
  • CM11409 MC-VC-PAB MMAE chemical structure
Customer kit made to order, usually ships within 1-2 weeks
Calculated at checkout


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CellMosaic has designed this kit for antibody (IgG) labeling of monomethyl auristatin E (MMAE) using a valine-citruline p-aminobenzylcarbamate (VC-PAB) for early stage screening of your antibody.

This kit includes maleimide-activated VC-PAB-MMAE, which can be coupled directly to the antibody after reduction through alkylation in a single step (a method developed by Seattle Genetics: Sun et al. 2005, Bioconjugate Chem. 16, 1282-1290). The product is purified to remove any unreacted drug. 

This kit provides materials to label one antibody. Scale of the reaction: 3 mg.

Drug Information

  • Name: Monomethyl auristatin E (MMAE) with Mal-Val-Cit-PAB linkage
  • CAS number: 646502-53-6
  • Mechanism of action: Inhibits cell division by blocking the polymerization of tubulin. VC-PAB linker is stable in extracellular fluid, but cleaved by cathepsin B once inside the tumor cell, thus activating the antimitotic mechanism
  • Activities: Antioxidant, anti-inflammatory, anticancer, and insecticidal activities

Key Features of this PerKit™

  • Offers a simple and easy way to label IgG with MMAE with minimum exposure to the toxin
  • Cathepsin B cleavable VC-PAB (Ref. Doronina et. al. 2008, Bioconjugate Chem. 19, 1960-1963)
  • Fast and easy preparation: 4 h preparation and <1 h hands-on time
  • All reagents and supplies included for preparation and purification
  • Over 90% pure conjugated products by SEC
  • Options to choose tailored services at CellMosaic after conjugation

After conjugation: you can choose to send your sample to CellMosaic for HPLC analysis and determination of the DOL.


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