Site-directed ligand discovery.
Erlanson, D.A., Braisted, A.C., Raphael, D.R., Randal, M., Stroud, R.M., Gordon, E.M., Wells, J.A.(2000) Proc Natl Acad Sci U S A 97: 9367-9372
- PubMed: 10944209 
- DOI: 10.1073/pnas.97.17.9367
- Primary Citation of Related Structures:  
1F4F, 1F4E, 1F4D, 1F4C, 1F4B, 1F4G - PubMed Abstract: 
We report a strategy (called "tethering") to discover low molecular weight ligands ( approximately 250 Da) that bind weakly to targeted sites on proteins through an intermediary disulfide tether. A native or engineered cysteine in a protein is allowed to react reversibly with a small library of disulfide-containing molecules ( approximately 1,200 compounds) at concentrations typically used in drug screening (10 to 200 microM) ...