申请人:TECHNISCHE UNIVERSITÄT MÜNCHEN
公开号:US20210079037A1
公开(公告)日:2021-03-18
The present invention relates to a light-switchable polypeptide. In particular, the present invention relates to a polypeptide comprising a light-responsive element, wherein the configuration (i.e. the configurational state) of the light-responsive element can be switched between a trans and cis isomer by irradiating the polypeptide with (a) particular wavelength(s) of light, and wherein the switch of said configuration alters the conformation and binding activity of said polypeptide to a ligand (e.g. molecule of interest). Also, the present invention comprises using said light-switchable polypeptide for isolating and/or purifying a molecule of interest. The present invention further provides an affinity matrix, an affinity chromatography column, and an affinity chromatography apparatus comprising the light-switchable polypeptide of the invention.