X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.4
Details PROTEIN WAS CRYSTALLIZED FROM 10-14 % PEG 4000, 10-14 % MPD, 100 MM CITRATE/PHOSPHATE BUFFER, PH 6.4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 41.08 α = 90
b = 156.82 β = 90
c = 43.61 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1993-11
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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
1.6 20 88.0 0.053 0.053 -- 2.6 -- 33644 -- 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)
1.6 1.64 73.7 0.053 0.22 3.1 1.2 --

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
MIR 1.6 8.0 -- 0.0 32395 32395 -- 88.0 -- -- 0.178 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 14.9
RMS Deviations
Key Refinement Restraint Deviation
p_plane_restr 0.015
p_planar_tor 2.704
p_mcangle_it 2.05
p_angle_d 0.044
p_transverse_tor 25.0
p_staggered_tor 13.07
p_multtor_nbd 0.212
p_mcbond_it 1.3
p_bond_d 0.021
p_scangle_it 2.26
p_singtor_nbd 0.169
p_planar_d 0.054
p_scbond_it 1.64
p_chiral_restr 0.082
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2316
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 230

Software

Software
Software Name Purpose
MOSFLM data reduction
CCP4 data reduction
MLPHARE phasing
PROLSQ refinement
CCP4 data scaling