X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 291.0
Details 50 MM N-[2-ACETAMIDO]-2-IMINODIACETIC ACID WITHIN THE PRECIPITANT RANGE OF 14% TO 19% POLYETHYLENE GLYCOL 4000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.39 α = 90
b = 87.99 β = 90
c = 158.97 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 2002-06-09
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200HB 1.5418 -- --

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
2.15 31.21 98.5 0.055 -- -- 4.02 39337 38752 0.0 -- 17.4
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.15 2.23 99.5 0.175 -- 6.6 4.0 3830

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
MOLECULAR REPLACEMENT 2.15 31.21 -- 0.0 -- 38741 1940 98.4 -- 0.208 0.208 0.257 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.15 2.28 -- 318 6101 0.274 0.328 0.018 99.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.7
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.61
c_scbond_it 1.7
c_mcangle_it 1.53
c_mcbond_it 0.92
c_improper_angle_d 2.32
c_bond_d 0.006
c_angle_deg 1.5
c_dihedral_angle_d 20.7
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4486
Nucleic Acid Atoms 0
Heterogen Atoms 196
Solvent Atoms 500

Software

Computing
Computing Package Purpose
CRYSTALCLEAR D*TREK (MSC/RIGAKU) Data Reduction (intensity integration)
CRYSTALCLEAR D*TREK (MSC/RIGAKU) Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building
CRYSTAL version: CLEAR/D*TREK data reduction
CRYSTAL version: CLEAR/D*TREK data collection