X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 21.0
Details Ammonium sulfate, MPD, MES, trehalose, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 21K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 73.21 α = 90
b = 73.21 β = 90
c = 92.54 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 PARABOLIC COLLIMATING MIR 2000-04-06
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C -- NSLS X8C

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
1.9 100 99.8 0.068 0.068 -- 7.6 23441 23441 0.0 -3.0 24.2
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)
1.9 1.97 100.0 0.367 0.367 7.7 7.9 2310

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
-- 1.9 20.0 -3.0 0.0 23077 23077 1177 99.9 0.194 0.194 0.1916 0.284 RANDOM (CCP4 UNIQUEIFY)
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.0
s_similar_adp_cmpnt 0.077
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.007
s_non_zero_chiral_vol 0.038
s_zero_chiral_vol 0.031
s_from_restr_planes 0.0239
s_similar_dist 0.0
s_angle_d 0.02
s_bond_d 0.006
Coordinate Error
Parameter Value
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 2447.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2154
Nucleic Acid Atoms 0
Heterogen Atoms 82
Solvent Atoms 223

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELXL-97 Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELXL-97 model building
SCALEPACK data reduction
DENZO data collection