X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details PROTEIN WAS CRYSTALLIZED FROM 60-70% A.S., 100MM TRIS-HCL, PH=7.0.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52.81 α = 90
b = 52.81 β = 90
c = 139.95 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-08
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
1.83 10 98.0 0.52 -- -- 2.8 -- 17939 -- -- 19.25
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)
1.83 1.85 67.0 0.35 -- 1.2 2.0 --

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 1.9 10.0 -- -- 17939 17939 896 100.0 0.196 0.2 0.19 0.24 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.8
RMS Deviations
Key Refinement Restraint Deviation
p_planar_tor 1.811
p_staggered_tor 17.1
p_planar_d 0.032
p_chiral_restr 0.14
p_bond_d 0.01
p_singtor_nbd 0.18
p_angle_d 0.03
p_multtor_nbd 0.252
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 10.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1101
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 100

Software

Software
Software Name Purpose
AMoRE phasing
PROLSQ refinement
DENZO data reduction
SCALEPACK data scaling