Ivan Oransky | Jul 27, 2003 | 4 min read
PATENT WATCH | Fluorophore Fingerprinting The Molecular Sciences Institute in Berkeley, Calif., has been awarded a patent for a protein fingerprint system (US patent 6,569,685, issued May 27, 2003). The patent covers a method that, in the simplest case, consists of covalently modifying reactive residues using orthogonal chemistries, by attaching one fluorophore to lysine residues under appropriate chemical conditions, and a different fluorophore to cysteine residues. "The general idea is to