X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 6
Details VAPOUR DIFFUSION, PROTEIN 30MG/ML, RESERVOIR 2.0M AMMONIUM SULFATE, 100MM NA CITRATE PH6.0, PLUS 2MM DTT., vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.14 α = 90
b = 72.14 β = 90
c = 34.56 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-04
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.5 -- SRS PX9.5

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
2.2 36 99.0 0.093 0.093 -- 4.2 -- 5401 -- 6.0 35.0
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)
2.2 2.32 99.0 0.201 0.201 3.4 3.2 --

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
SIR 2.2 36.0 -- 0.0 -- 5394 517 99.1 -- -- 0.186 0.264 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 39.0
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.012
p_plane_restr 0.023
p_scbond_it 4.57
p_singtor_nbd 0.182
p_planar_d 0.035
p_chiral_restr 0.123
p_angle_d 0.034
p_planar_tor 4.8
p_xyhbond_nbd 0.178
p_transverse_tor 21.2
p_multtor_nbd 0.25
p_staggered_tor 19.5
p_mcangle_it 4.784
p_scangle_it 6.757
p_mcbond_it 3.126
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.24
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 685
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 60

Software

Software
Software Name Purpose
SHARP phasing
REFMAC refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)