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== Function ==

[https://www.uniprot.org/uniprot/CAH2_HUMAN CAH2_HUMAN] Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye.<ref>PMID:10550681</ref> <ref>PMID:11831900</ref>

== Publication Abstract from PubMed ==

A series of compounds incorporating both sulfonamide and sulfamide as zinc-binding groups (ZBGs) are reported as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). Crystallographic studies on the complex of hCA II with the lead compound of this series, namely, 4-sulfamido-benzenesulfonamide, revealed the binding of two molecules in the enzyme active site cavity, the first one canonically coordinated to the zinc ion by means of the sulfonamide group and the second one located at the entrance of the cavity. This observation led to the design of elongated molecules incorporating these two ZBGs, separated by a linker of proper length, to allow the simultaneous binding to these different sites. The "long" inhibitors indeed showed around 10 times better enzyme inhibitory properties as compared to the shorter molecules against four physiologically relevant human (h) isoforms, hCA I, II, IX, and XII.

Development of Potent Carbonic Anhydrase Inhibitors Incorporating Both Sulfonamide and Sulfamide Groups.,D'Ambrosio K, Smaine FZ, Carta F, De Simone G, Winum JY, Supuran CT J Med Chem. 2012 Jul 20. PMID:22775345<ref>PMID:22775345</ref>

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>

</div>

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 == Function ==
 [https://www.uniprot.org/uniprot/CAH2_HUMAN CAH2_HUMAN] Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye.<ref>PMID:10550681</ref> <ref>PMID:11831900</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+A series of compounds incorporating both sulfonamide and sulfamide as zinc-binding groups (ZBGs) are reported as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). Crystallographic studies on the complex of hCA II with the lead compound of this series, namely, 4-sulfamido-benzenesulfonamide, revealed the binding of two molecules in the enzyme active site cavity, the first one canonically coordinated to the zinc ion by means of the sulfonamide group and the second one located at the entrance of the cavity. This observation led to the design of elongated molecules incorporating these two ZBGs, separated by a linker of proper length, to allow the simultaneous binding to these different sites. The "long" inhibitors indeed showed around 10 times better enzyme inhibitory properties as compared to the shorter molecules against four physiologically relevant human (h) isoforms, hCA I, II, IX, and XII.
+Development of Potent Carbonic Anhydrase Inhibitors Incorporating Both Sulfonamide and Sulfamide Groups.,D'Ambrosio K, Smaine FZ, Carta F, De Simone G, Winum JY, Supuran CT J Med Chem. 2012 Jul 20. PMID:22775345<ref>PMID:22775345</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 3v5g" style="background-color:#fffaf0;"></div>
 ==See Also==