X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.8
Details PROTEIN WAS CRYSTALLISED FROM PEG 2000 MONOMETHLY ETHER 50 MM MES PH 5.8, 0.1M NACL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.28 α = 90
b = 67.28 β = 90
c = 164.73 γ = 90
Symmetry
Space Group P 41

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1997-03-23
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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 30 89.7 0.048 -- -- 3.5 -- 33195 -- -- 13.0
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 63.1 0.128 -- 5.5 1.8 --

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
MR 2.2 30.0 -- -- -- 33193 1679 89.7 -- 0.19 0.18 0.25 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 16.0
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 35.6
p_staggered_tor 17.8
p_planar_tor 3.7
p_xyhbond_nbd 0.179
p_multtor_nbd 0.233
p_bond_d 0.01
p_angle_d 0.03
p_planar_d 0.031
p_mcbond_it 1.035
p_mcangle_it 1.525
p_scbond_it 3.036
p_scangle_it 3.772
p_plane_restr 0.021
p_chiral_restr 0.108
p_singtor_nbd 0.177
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.26
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5702
Nucleic Acid Atoms 0
Heterogen Atoms 108
Solvent Atoms 507

Software

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