6g7a

Crystal structure of human carbonic anhydrase isozyme XII 2-(benzylamino)-4-chloro-N-(2-hydroxyethyl)-5-sulfamoyl-benzamide

spinqualitylabelsall models 6g7a, resolution 1.42Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6g7a is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.42Å Ligands: EDO, EOQ, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Disease CAH12_HUMAN Defects in CA12 are the cause of hyperchlorhidrosis isolated (HCHLH) [MIM:143860. HCHLH is a disorder characterized by excessive sweating and increased sweat chloride levels. Affected individuals suffer from episodes of hyponatremic dehydration and report increased amounts of visible salt precipitates in sweat. Function CAH12_HUMAN Reversible hydration of carbon dioxide. Publication Abstract from PubMed Rational design of compounds that would bind specific pockets of the target proteins is a difficult task in drug design. The 12 isoforms of catalytically active human carbonic anhydrases (CAs) have highly similar active sites that make it difficult to design inhibitors selective for one or several CA isoforms. A series of CA inhibitors based on 2-chloro/bromo-benzenesulfonamide that is largely fixed in the CA active site together with one or two tails yielded compounds that were synthesized and evaluated as inhibitors of CA isoforms. Introduction of a second tail had significant influence on the binding affinity and two-tailed compounds in most cases provided high affinity and selectivity for CA IX and CA XIV. The contacts between several compounds and CA amino acids were determined by X-ray crystallography. Together with the intrinsic enthalpy and entropy of binding they provided the structure-thermodynamics correlations for this series of compounds with the insight how to rationally build compounds with desired CA isoform as a target. Design of two-tail compounds with rotationally fixed benzenesulfonamide ring as inhibitors of carbonic anhydrases.,Zaksauskas A, Capkauskaite E, Jezepcikas L, Linkuviene V, Kisonaite M, Smirnov A, Manakova E, Grazulis S, Matulis D Eur J Med Chem. 2018 Aug 5;156:61-78. doi: 10.1016/j.ejmech.2018.06.059. Epub, 2018 Jun 27. PMID:30006175 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Carbonic anhydrase 3D structures

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