Institut für Pharmazeutische Chemie, Philipps-Universität Marburg, Marbacher Weg 6, 35032 Marburg, Germany.
ChemMedChem. 2010 Sep 3;5(9):1609-15. doi: 10.1002/cmdc.201000200.
A series of new zinc binding groups (ZBGs) has been evaluated kinetically on 13 carbonic anhydrase (CA) isoforms. The fragments show affinity for all isoforms with IC(50) values in the range of 2-11 microM. The crystal structure of hCA II in complex with one such fragment reveals a bidentate binding mode with a trigonal-bipyramidal coordination geometry at the Zn(2+) center. The fragment also interacts with Thr199 and Thr200 through hydrogen bonding and participates in a water network. Further development of this ZBG should increase the binding affinity leading to a structurally distinct and promising class of CA inhibitors.
已经对一系列新的锌结合基团 (ZBG) 进行了动力学评估,涉及 13 种碳酸酐酶 (CA) 同工酶。这些片段对所有同工酶均具有亲和力,IC 50 值在 2-11 μM 范围内。与其中一个片段形成复合物的 hCA II 的晶体结构揭示了 Zn(2+)中心的双齿结合模式和三角双锥配位几何形状。该片段还通过氢键与 Thr199 和 Thr200 相互作用,并参与水网络。进一步开发这种 ZBG 应该会提高结合亲和力,从而产生一类结构独特且有前途的 CA 抑制剂。