X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details 100 NL OF PROTEIN SOLUTION (10 MG ML-1 IN 100 MM SODIUM ACETATE PH 5.0, 150 MM NACL AND 0.5 MM ZINC SULPHATE) WERE MIXED AT 1:1 RATIO WITH RESERVOIR (0.2M LITHIUM SULPHATE, 25% PEG 3350 AND 0.1M BIS-TRIS, PH 5.5) EQUILIBRATED AGAINST A 70 UL RESERVOIR. CRYSTALS WERE OBSERVED AFTER THREE DAYS.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.9 α = 90
b = 85.95 β = 90
c = 289.02 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH MIRRORS 2011-02-17
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID23-2 -- ESRF ID23-2

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
1.9 40 99.9 0.13 -- -- 4.2 -- 124234 -- 2.0 --
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)
1.9 2.0 100.0 0.48 -- 2.7 4.2 --

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 1.9 40.0 -- -- -- 117888 6246 99.75 -- 0.16641 0.16439 0.20455 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.9 1.949 -- 434 8081 0.241 0.27 -- 99.96
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 16.436
Anisotropic B[1][1] -0.57
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.11
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.54
RMS Deviations
Key Refinement Restraint Deviation
r_gen_planes_refined 0.005
r_chiral_restr 0.08
r_dihedral_angle_4_deg 16.01
r_dihedral_angle_3_deg 13.856
r_dihedral_angle_2_deg 31.897
r_dihedral_angle_1_deg 5.801
r_angle_refined_deg 1.143
r_bond_refined_d 0.008
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11931
Nucleic Acid Atoms 0
Heterogen Atoms 112
Solvent Atoms 1049

Software

Computing
Computing Package Purpose
IMOSFLM Data Reduction (intensity integration)
SCALA Data Reduction (data scaling)
PHASER Structure Solution
REFMAC 5.6.0117 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.6.0117 refinement
PHASER model building