Image subtraction approach to screening one-bead-one-compound combinatorial libraries with complex protein mixtures

Lehman, Alan, Gholami, Sepideh, Hahn, Min, Lam, Kit S (2006) Image subtraction approach to screening one-bead-one-compound combinatorial libraries with complex protein mixtures. ACS Combinatorial Science, 8 (4). pp. 562-570. ISSN 1520-4766

Abstract

To screen one-bead-one-compound (OBOC) combinatorial bead libraries,(1) one generally uses tagged purified protein as the screening probe. Compound beads that interact with the purified protein are then identified, for example, via an enzyme-linked colorimetric assay, and isolated for structure determination. In this report, we demonstrate a rapid and efficient method to screen OBOC combinatorial libraries utilizing two protein mixtures as screening probes, and by comparing optical images of the beads stained by one protein mixture but not the other, ligand beads unique to one of the two protein mixtures can be identified. The significance of this method is that it allows for rapid selection of ligands directed against proteins unique to one mixture while screening out positive beads resulting from proteins common to both mixtures as well as beads that are positive as a result of interactions with chemical and protein components found in the assay itself. The method is fast, efficient, and uses off-the-shelf equipment.

Item Type: Paper
Subjects: Investigative techniques and equipment > microspheres
CSHL Authors:
Communities: CSHL labs > Gholami Lab
SWORD Depositor: CSHL Elements
Depositing User: CSHL Elements
Date: 2006
Date Deposited: 05 Oct 2023 20:18
Last Modified: 05 Oct 2023 20:18
Related URLs:
URI: https://repository.cshl.edu/id/eprint/41162

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