X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 20.0
Details PEG 8000, SODIUM PHOSPHATE, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 20K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.86 α = 90
b = 66.8 β = 90
c = 100.26 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
CCD BRANDEIS - B4 MONOCHROMATOR, MIRRORS 2000-08-26
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
1.25 20 96.7 -- 0.069 -- 5.6 95204 92030 2.0 2.0 --
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)
1.25 1.29 77.8 -- 0.178 2.0 2.0 7323

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
FOURIER SYNTHESIS 1.25 10.0 -- 0.0 89053 84590 4463 89.1 -- 0.1094 0.1112 0.154 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 1.25 1.29 5677 284 -- 0.172 -- -- 67.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ANISOTROPIC
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.1
s_similar_adp_cmpnt 0.03
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.02
s_non_zero_chiral_vol 0.08
s_zero_chiral_vol 0.07
s_from_restr_planes 0.032
s_similar_dist 0.0
s_angle_d 0.02
s_bond_d 0.01
Coordinate Error
Parameter Value
Number Disordered Residues 26.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 3215.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2602
Nucleic Acid Atoms 0
Heterogen Atoms 27
Solvent Atoms 587

Software

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