Two types of photoaffinity: probe, which possesses a benzophenone or a diazirine photophore on the 2-position of tautomycin, were prepared in order to prove the details of binding site to PP1. These photoaffinity probes were designed on the basis of the structure-activity relationship; thus, the diacid moiety is indispensable. The selective introduction of photolabeling units on the 2-position of tautomycin was achieved through the 2-oxime of tautomycin diacid. (C) 2004 Elsevier Ltd. All rights reserved.
Two types of photoaffinity: probe, which possesses a benzophenone or a diazirine photophore on the 2-position of tautomycin, were prepared in order to prove the details of binding site to PP1. These photoaffinity probes were designed on the basis of the structure-activity relationship; thus, the diacid moiety is indispensable. The selective introduction of photolabeling units on the 2-position of tautomycin was achieved through the 2-oxime of tautomycin diacid. (C) 2004 Elsevier Ltd. All rights reserved.