PEPTIDE / PROTEIN IDENTIFICATION USING PHOTOREACTIVE CARRIERS FOR THE IMMOBILISATION OF THE LIGANDS
申请人:Dilly Suzanne Jane
公开号:US20100173793A1
公开(公告)日:2010-07-08
The invention provides a method of identifying a peptide or protein capable of binding a ligand which comprises: (i) providing a support, the support comprising a photoreactive group; (ii) reacting the photoreactive group with a ligand to attach the ligand to the support and produce a supported ligand; (iii) providing an expression library comprising a plurality of members, each member expressing a different peptide or protein; (iv) screening the expression library to identify one or more peptides or proteins which bind to the ligand; (v) isolating the member or each member of the library which expresses a peptide or protein which binds to the ligand; and (vi) identifying the peptide or protein which binds to the ligand. Supported photo-reactive compounds are disclosed comprising a photo-reactive group attached to a support via a spacer and a dendritic group, the dendritic group comprising attached thereto, optionally via a spacer, at least one further photo-reactive group and/or a second functional group. Compounds comprising photo-reactive groups attached to a support and a protein resistant group attached to the support are also provided, together with kits for carrying out the method of the invention.
该发明提供了一种识别能够结合配体的肽或蛋白质的方法,包括:(i)提供一种支持物,该支持物包括一个光反应性基团;(ii)将光反应性基团与配体反应,将配体附着到支持物上并产生支持的配体;(iii)提供一个表达文库,该文库包含多个成员,每个成员表达不同的肽或蛋白质;(iv)筛选表达文库,以识别结合配体的一个或多个肽或蛋白质;(v)分离表达文库的每个成员,该成员表达结合配体的肽或蛋白质;(vi)识别结合配体的肽或蛋白质。还公开了支持光反应性化合物,其包括通过间隔物和树状基团将光反应性基团附着到支持物上,该树状基团包括通过间隔物连接至其上的至少一个进一步的光反应性基团和/或第二功能基团。还提供了附着于支持物上的光反应性基团和蛋白质抗性基团的化合物,以及用于执行该发明方法的试剂盒。