X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.6
Details 50% AMMONIUM SULFATE, 0.1M SODIUM ACETATE, PH 5.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.55 α = 90
b = 39.3 β = 90
c = 45.52 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-07-18
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.8 15 99.7 0.065 -- -- 3.6 -- 5155 -- 0.0 21.2
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)
1.8 1.9 100.0 0.208 -- 3.2 3.6 --

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
MIR 1.8 15.0 -- 0.0 -- 5709 -- 99.7 -- -- 0.174 0.233 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.3
RMS Deviations
Key Refinement Restraint Deviation
p_mcangle_it 2.02
p_singtor_nbd 0.19
p_planar_d 0.035
p_multtor_nbd 0.255
p_staggered_tor 17.6
p_mcbond_it 1.35
p_scbond_it 4.01
p_transverse_tor 7.2
p_angle_d 0.029
p_bond_d 0.011
p_scangle_it 6.02
p_chiral_restr 0.172
p_planar_tor 5.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 483
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 54

Software

Software
Software Name Purpose
CCP4 model building
REFMAC refinement
DENZO data reduction
CCP4 data scaling
CCP4 phasing