X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details HANGING DROP METHOD, 12 MG/ML PROTEIN IN 30 MM HEPES, PH 6.5, 0.05 % NAN3 PRECIPITANT 66 % SAT. AMMONIUM SULFATE, 100MM TRIS-HCL PH 7.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 135.3 α = 90
b = 137.2 β = 90
c = 80.6 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
CCD MARRESEARCH BENT MULTILAYER, SAGITALLY FOCUSING CRYSTAL 1997-10-15
Diffraction Radiation
Monochromator Protocol
DIAMOND C(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-3 -- ESRF ID14-3

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
1.5 34.7 82.7 0.063 0.063 -- 4.2 -- 98776 -- 0.0 --
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)
1.5 1.58 71.4 0.352 0.352 2.1 3.3 --

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 1.5 10.0 -- 0.0 -- 95112 4838 79.8 -- -- 0.134 0.167 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.2
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 26.4
p_staggered_tor 11.8
p_planar_tor 8.3
p_xyhbond_nbd 0.173
p_multtor_nbd 0.312
p_bond_d 0.021
p_angle_d 0.036
p_planar_d 0.043
p_mcbond_it 2.4
p_mcangle_it 3.2
p_scbond_it 3.0
p_scangle_it 4.0
p_plane_restr 0.029
p_chiral_restr 0.137
p_singtor_nbd 0.169
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4016
Nucleic Acid Atoms 0
Heterogen Atoms 338
Solvent Atoms 795

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
X-PLOR Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
X-PLOR model building