X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 4.6
Temperature 291.0
Details Ammonium Acetate, Sodium acetate, PEG 4000, Glycerol , pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 121.37 α = 90
b = 66.93 β = 90
c = 171.95 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
CCD BRANDEIS - B1 -- 2000-03-03
Diffraction Radiation
Monochromator Protocol
Si 111 CHANNEL MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 0.9789 NSLS X12C

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
2.3 100 86.7 0.079 -- -- -- -- n/a 0.0 0.0 --
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)
2.3 2.38 69.4 0.383 -- -- 8.0 8331

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
MAD 2.3 500.0 -- 0.0 -- 53833 -- 85.4 -- -- 0.255 0.2982 Random
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 21.15
Anisotropic B[1][1] -5.22
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -8.55
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 13.78
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.707
c_mcangle_it 1.984
c_scbond_it 1.903
c_mcbond_it 1.223
c_angle_deg 1.609
c_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 9340
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 122

Software

Computing
Computing Package Purpose
MARMAD Data Reduction (intensity integration)
HKL-2000 Data Reduction (data scaling)
PHASES Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
PHASES model building
HKL2000 data reduction
MARMAD data collection