4bs5

MOUSE CATHEPSIN S WITH COVALENT LIGAND

spinqualitylabelsall models 4bs5, resolution 1.25Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4bs5 is a 1 chain structure with sequence from Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: MG2 Related: 4bqv, 4bs6, 4bsq Activity: Cathepsin S, with EC number 3.4.22.27 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [CATS_MOUSE] Thiol protease. Key protease responsible for the removal of the invariant chain from MHC class II molecules. The bond-specificity of this proteinase is in part similar to the specificities of cathepsin L and cathepsin N. Publication Abstract from PubMed Starting from the weakly active dual CatS/K inhibitor 5, structure-based design supported by X-ray analysis led to the discovery of the potent and selective (>50 000-fold vs CatK) cyclopentane derivative 22 by exploiting specific ligand-receptor interactions in the S2 pocket of CatS. Changing the central cyclopentane scaffold to the analogous pyrrolidine derivative 57 decreased the enzyme as well as the cell-based activity significantly by 24- and 69-fold, respectively. The most promising scaffold identified was the readily accessible proline derivative (e.g., 79). This compound, with an appealing ligand efficiency (LE) of 0.47, included additional structural modifications binding in the S1 and S3 pockets of CatS, leading to favorable in vitro and in vivo properties. Compound 79 reduced IL-2 production in a transgenic DO10.11 mouse model of antigen presentation in a dose-dependent manner with an ED50 of 5 mg/kg. Identification of Potent and Selective Cathepsin S Inhibitors Containing Different Central Cyclic Scaffolds.,Hilpert H, Mauser H, Humm R, Anselm L, Kuehne H, Hartmann G, Gruener S, Banner DW, Benz J, Gsell B, Kuglstatter A, Stihle M, Thoma R, Sanchez RA, Iding H, Wirz B, Haap W J Med Chem. 2013 Nov 22. PMID:24224654 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Cathepsin

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