1CSR

Alpha-fluoro acid and alpha-fluoro amide analogs of acetyl-coa as inhibitors of of citrate synthase: effect of pka matching on binding affinity and hydrogen bond length


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 104.39 α = 90
b = 78.43 β = 78.86
c = 58.47 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II -- 1994-12-15
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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
-- -- -- 0.077 -- -- 1.7 -- n/a -- -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 1.7 25.0 -- 0.0 -- 38748 -- 75.0 -- 0.179 -- -- --
RMS Deviations
Key Refinement Restraint Deviation
t_gen_planes 0.009
t_angle_deg 2.5
t_bond_d 0.012
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3391
Nucleic Acid Atoms 0
Heterogen Atoms 61
Solvent Atoms 145

Software

Computing
Computing Package Purpose
R-AXIS Data Reduction (intensity integration)
TNT Structure Refinement
Software
Software Name Purpose
TNT refinement