X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 295.0
Details PEG 8000, potassium phosphate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.11 α = 90
b = 87.94 β = 90
c = 72.88 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 291
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 2001-12-01
Diffraction Radiation
Monochromator Protocol
MAR MIRRORS SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU300 1.5418 -- --

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
1.96 20 98.7 0.095 -- -- 5.0 34738 34738 1.0 1.0 22.2
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)
1.98 2.03 96.61 0.275 -- 3.6 2.5 3304

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 1.96 10.0 0.0 0.0 34431 32682 1749 99.6 0.1786 0.1783 0.1776 0.2267 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.96 2.03 3304 -- -- -- -- -- 96.61
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isptropic
Mean Isotropic B 22.2
RMS Deviations
Key Refinement Restraint Deviation
s_anti_bump_dis_restr 0.013
s_angle_d 0.022
s_zero_chiral_vol 0.03
s_non_zero_chiral_vol 0.034
s_from_restr_planes 0.0241
s_similar_adp_cmpnt 0.063
s_similar_dist 0.0
s_rigid_bond_adp_cmpnt 0.0
s_bond_d 0.006
s_approx_iso_adps 0.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.075
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 3911.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3630
Nucleic Acid Atoms 0
Heterogen Atoms 108
Solvent Atoms 172

Software

Software
Software Name Purpose
HKL data collection
SCALEPACK data scaling
X-PLOR model building
SHELXL-97 refinement
HKL data reduction
X-PLOR phasing