X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.1
Details HANGING DROP, 2.2M NACL, 0.4M NA/K PHOSPHATE, 10MM DTT 0.1M MES PH 7.1, 15% GLYCEROL, 16DEGREES, MOLAR RATIO OF PEPTIDE TO PROTEIN 3:1, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 125.68 α = 90
b = 125.68 β = 90
c = 73.16 γ = 120
Symmetry
Space Group P 64

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 105
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate MIRROR 1998-05-15
Diffraction Radiation
Monochromator Protocol
YES SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX7.2 -- SRS PX7.2

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
2.65 35 99.0 0.094 0.094 -- 9.2 -- 119506 -- 4.0 82.0
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)
2.65 2.79 97.0 0.882 0.882 2.1 8.1 --

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 2.65 35.0 -- 0.0 -- 19296 842 99.6 -- 0.272 0.25 0.296 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 60.0
Anisotropic B[1][1] 1.25
Anisotropic B[1][2] 0.63
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.25
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.111
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 22.5
p_staggered_tor 18.6
p_planar_tor 1.7
p_xyhbond_nbd 0.185
p_multtor_nbd 0.25
p_bond_d 0.01
p_angle_d 0.038
p_planar_d 0.035
p_mcbond_it 1.6
p_mcangle_it 2.8
p_scbond_it 3.4
p_scangle_it 4.8
p_plane_restr 0.0026
p_chiral_restr 0.119
p_singtor_nbd 0.198
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2092
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 51

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHARP, SOLOMON Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
SOLOMON model building
SHARP model building