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. 2006 Dec 1;359(1):120-3.
doi: 10.1016/j.ab.2006.09.007. Epub 2006 Oct 4.

Screening for transient biological interactions as applied to albumin ligands: a new concept for drug discovery

Sten Ohlson  1 , Siamak Shoravi, Tomas Fex, Roland Isaksson
Affiliations

Screening for transient biological interactions as applied to albumin ligands: a new concept for drug discovery

Sten Ohlson et al. Anal Biochem. .

Abstract

The notion that many biological interactions are based on transient binding (dissociation constants (K(d)) in the range of 10-0.01 mM) is familiar, yet the implications for biological sciences have been realized only recently. An important area of biological sciences is drug design, where the traditional "lock and key" view of binding has prevailed and drug candidates are usually selected on their merits as being tight binders. However, the rationale that transient interactions are of importance for drug discovery is slowly gaining acceptance. These interactions may relate not only to the desired target interaction but also to unwanted interactions creating, for example, toxicity problems. Here we demonstrate, in a high-throughput screening format, affinity selection of weak binders to a model target of albumin by zonal retardation chromatography. It is perceived that this approach can define the "transient drug" as a complement to current drug discovery procedures.

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