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Identification of N-(4-piperidinyl)-4-(2,6-dichlorobenzoylamino)-1H- pyrazole-3-carboxamide (AT7519), a Novel Cyclin Dependent Kinase Inhibitor Using Fragment-Based X-Ray Crystallography and Structure Based Drug Design
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details other IN-HOUSE STRUCTURE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.7 0.1M HEPES/NAOH, 0.0475M AMMONIUM ACETATE, 12% W/V PEG3350, pH 6.7
Crystal Properties Matthews coefficient Solvent content 1.92 35.41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.467 α = 90 b = 71.627 β = 90 c = 71.982 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD RIGAKU CCD OSMIC CONFOCAL BLUE M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 HR
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2 32.16 99.1 0.09 8.9 2.6 19083 28.602
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2 2.07 94.6 0.3 3.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT IN-HOUSE STRUCTURE 2 32.16 19083 980 99.38 0.1816 0.1788 0.185 0.2349 0.2488 RANDOM 33.29
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3] -0.8792048 -1.734414 2.6136188
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2335 Nucleic Acid Atoms Solvent Atoms 216 Heterogen Atoms 14
Software Software Software Name Purpose BUSTER-TNT refinement CrystalClear data reduction CrystalClear data scaling AMoRE phasing