X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM 7% PEG 8000, 0.2 M ZN(ACETATE) AND 100 MM NA( CACODYLATE), PH 6.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.18 α = 90
b = 66.45 β = 90
c = 85.9 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1998-04-15
Diffraction Radiation
Monochromator Protocol
MIRRORS SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-13 -- -- --

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 52.7 95.9 0.068 0.068 -- 6.6 -- 20632 -- -- 17.63
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)
2.0 2.05 87.9 0.185 0.185 4.0 5.6 --

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
SIRAS 2.0 35.0 -- 0.0 -- 19550 1039 96.0 -- -- 0.207 0.25 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.0
RMS Deviations
Key Refinement Restraint Deviation
p_planar_tor 3.1
p_chiral_restr 0.099
p_staggered_tor 14.6
p_special_tor 15.0
p_transverse_tor 34.9
p_xyhbond_nbd 0.134
p_scangle_it 1.547
p_singtor_nbd 0.168
p_multtor_nbd 0.197
p_planar_d 0.02
p_mcbond_it 0.826
p_angle_d 0.023
p_scbond_it 0.978
p_mcangle_it 1.453
p_bond_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1928
Nucleic Acid Atoms 0
Heterogen Atoms 39
Solvent Atoms 279

Software

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