X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 9
Details 2.6-3.0 M AMMONIUM SULFATE, 20 MM TRIS, 1 MM EDTA, PH 9.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.54 α = 90
b = 91.54 β = 90
c = 45.89 γ = 120
Symmetry
Space Group P 6

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1997-11-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE SIEMENS -- -- --

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
1.8 50 93.0 0.052 -- -- -- -- 19086 -- 0.0 --

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
OTHER 1.8 5.0 -- 0.0 16297 -- 1810 83.5 0.1659 0.1685 -- 0.2149 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.025
s_rigid_bond_adp_cmpnt 0.0
s_bond_d 0.009
s_zero_chiral_vol 0.047
s_anti_bump_dis_restr 0.036
s_similar_adp_cmpnt 0.079
s_non_zero_chiral_vol 0.045
s_similar_dist 0.005
s_approx_iso_adps 0.0
Coordinate Error
Parameter Value
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 1422.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1222
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 115

Software

Software
Software Name Purpose
XDS data scaling
XSCALE data scaling
X-PLOR model building version: 3.851
SHELXL-97 model building
SHELXL-97 refinement
XDS data reduction
X-PLOR phasing version: 3.851
SHELXL-97 phasing