A new visual screening assay for catalytic antibodies with retro-aldol retro-Michael activity

  • Marina Shamis
  • , Carlos F. Barbas
  • , Doron Shabat*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Fast and convenient methods are required for the detection of novel catalysts. We have developed a new assay to allow direct visualization of retro-aldol retro-Michael catalytic activity and have demonstrated it with catalytic antibody 38C2. The assay is based on a catalytic cleavage of a physiologically stable substrate to release 3,4-cyclohexeneoesculetin. The latter then reacts with iron(III) to generate a non-soluble complex that precipitates in the form of a black dye. This assay may be used for screening new catalysts for retro-aldol retro-Michael activity with improved efficiency for specific prodrug activation.

Original languageEnglish
Pages (from-to)1172-1175
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Volume17
Issue number5
DOIs
StatePublished - 1 Mar 2007

Funding

Funders
Israel Cancer Association
Israel Science Foundation
Ministry of Science and Technology, Israel

    Keywords

    • Aldol reaction
    • Assay
    • Catalytic antibodies
    • Prodrug activation

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