X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5
Details CRYSTALS PREPARED FROM 25MM SODIUM SULPHATE, 25MM SODIUM ACETATE (PH 5.0), 25 MG/ML PPE AND THEN SOAKED WITH ACETYL-VAL-GLU-PRO-ILE (17 MG/ML) DISSOLVED IN SODIUM ACETATE (PH 5.0, 50MM) AND SODIUM SULPHATE (25 MM)

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.16 α = 90
b = 57.84 β = 90
c = 74.32 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 MARRESEARCH -- 1998-06-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
1.67 22.9 95.2 0.072 -- -- 6.3 -- 24944 -- 0.0 13.8
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)
1.67 1.7 96.7 0.25 -- 10.0 -- --

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
MOLECULAR REPLACEMENT 1.67 22.9 -- 0.0 -- 24944 1019 95.2 -- 0.159 0.158 0.199 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.5
Anisotropic B[1][1] -0.73
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.39
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.34
RMS Deviations
Key Refinement Restraint Deviation
p_hb_or_metal_coord 0.132
p_singtor_nbd 0.177
p_bond_d 0.019
p_scangle_it 4.101
p_plane_restr 0.01
p_angle_d 0.028
p_mcbond_it 1.253
p_mcangle_it 2.009
p_chiral_restr 0.15
p_transverse_tor 19.4
p_multtor_nbd 0.25
p_planar_d 0.028
p_staggered_tor 13.3
p_special_tor 0.0
p_planar_tor 3.9
p_scbond_it 2.714
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1831
Nucleic Acid Atoms 0
Heterogen Atoms 6
Solvent Atoms 233

Software

Software
Software Name Purpose
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling
REFMAC phasing