X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 2.2M AMMONIUM SULPHATE, 20% V/V GLYCEROL, 4MM DITHIOTHREITOL, 100 MM HEPES PH 7.5, 125MM NACL 5:1 PEPTIDE:PROTEIN

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 43.68 α = 90
b = 71.92 β = 90
c = 89.2 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH OSMIC MIRRORS 2000-07-10
Diffraction Radiation
Monochromator Protocol
OSMIC MIRRORS SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
1.87 19.1 99.8 0.073 0.073 -- 7.4 -- 88913 -- -- 27.0
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)
1.87 1.98 99.5 0.204 0.204 8.7 7.0 --

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
SIRAS 1.87 19.0 -- 0.0 -- 11944 572 99.8 -- -- 0.187 0.209 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.0
Anisotropic B[1][1] -1.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.4
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.6
RMS Deviations
Key Refinement Restraint Deviation
p_plane_restr 0.006
p_angle_d 3.9
p_scbond_it 3.4
p_bond_d 0.016
p_chiral_restr 0.094
p_scangle_it 5.3
p_mcangle_it 3.6
p_singtor_nbd 0.31
p_mcbond_it 2.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 981
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 109

Software

Software
Software Name Purpose
REFMAC refinement
MOSFLM data reduction
SCALA data scaling
SHARP phasing