کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1375333 | 981937 | 2010 | 5 صفحه PDF | دانلود رایگان |
Trithiocarbonate (CS32-) inhibits with low micromolar affinities several mammalian carbonic anhydrases, CAs, EC 4.2.1.1 [Innocenti et al., Bioorg. Med. Chem. Lett. 2009, 19, 1855]. Here we report the X-ray crystal structure of the hCA II–trithiocarbonate adduct. Trithiocarbonate is monodentately bound to the Zn(II) ion and makes several hydrogen bonds with Thr199 and two water molecules from the enzyme active site. Its binding is different from that of ureate, another small inhibitor isosteric with trithiocarbonate but somehow mimicks the binding of the SO2NH moiety present in the sulfonamide inhibitors and is similar to that of bicarbonate. Compounds incorporating this new zinc-binding group, CS2-, may thus lead to new classes of potent inhibitors.
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Journal: Bioorganic & Medicinal Chemistry Letters - Volume 20, Issue 2, 15 January 2010, Pages 474–478