2010
DOI: 10.1016/j.bmcl.2010.01.103
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Thioether acetamides as P3 binding elements for tetrahydropyrido-pyrazole cathepsin S inhibitors

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Cited by 15 publications
(11 citation statements)
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“…This allowed us to evaluate the impact our choices had on the quality of our poses. We used four Cathepsin S structures (PDBids: 3IEJ, 3KWN, 3MPE, 3MPF) [ 17 19 ] and their respective ligands. After selecting the protein template based on the protocol described in “ Protein template selection ”, we selected the ligand conformers by their TanimotoCombo score and after superimposing them to the site of the crystallographic ligand, proceeded to refine them (see “ Docking ” below).…”
Section: Methodsmentioning
confidence: 99%
“…This allowed us to evaluate the impact our choices had on the quality of our poses. We used four Cathepsin S structures (PDBids: 3IEJ, 3KWN, 3MPE, 3MPF) [ 17 19 ] and their respective ligands. After selecting the protein template based on the protocol described in “ Protein template selection ”, we selected the ligand conformers by their TanimotoCombo score and after superimposing them to the site of the crystallographic ligand, proceeded to refine them (see “ Docking ” below).…”
Section: Methodsmentioning
confidence: 99%
“…(7). D) cocrystal pose (PDBID: 5QC4 (11)) Ligand carbons are pink; ligand common core carbons are yellow; key binding residues PHE71, VAL163, and PHE212 are green. E) The RMSDs of the ligand core for each pose in each Glide docking method show that blind poses were concentrated farther from the cocrystal position compared to the ligand-core-restrained docking.…”
Section: Resultsmentioning
confidence: 99%
“…A crystal structure of CatS (PDBID: 5QC4 (11)) was obtained from the RCSB PDB database (50). The structure was chosen due to its resolution of 2 Å and similarity of the cocrystallized ligand to those in the D3R dataset.…”
Section: Methodsmentioning
confidence: 99%
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“…Structures of inhibitor-cathepsin complexes available in the PDB were compared to the enzyme-ligand interactions found in this work. A 4-(methyl sulfonyl) phenyl trifluoroethylamine amide derivative (PDB code 1vsn, an analog of cathepsin K inhibitor odanacatib) in complex with cathepsin K [38]; 4-biphenylacetyl-Cys-(D) Arg-Tyr-N-(2-phenylethyl) amide (PDB code 1mhw) in complex with cathepsin L [39], and thioether acetamide P3 inhibitor (PDB code 3kwn) bound to cathepsin S [40] were used. Negative charges of catalytic thiols in the 3kwn and 1mhw files were imposed; this last step was not necessary for 1vsn, since in this case the ligand is covalently linked to the active-site cysteine of cathepsin K. The geometry of these three structures was optimized in the same way as for the natural and chimeric complexes.…”
Section: Analysis Of Specific Inhibitor Moleculesmentioning
confidence: 99%