X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 298.0
Details 20% PEG 8000, 50mM Sodium Phosphate, pH 6.80, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.8 α = 90
b = 66.6 β = 90
c = 98.7 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 MIRRORS 2003-04-12
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 1.00 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
1.3 50 97.6 0.061 -- -- 8.4 82877 82877 0.0 0.0 --
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)
1.3 1.35 81.7 0.35 -- 3.0 5.1 --

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 1.3 10.0 -- 0.0 73703 73703 3897 89.0 0.1092 0.1076 0.1076 0.1498 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.089
s_similar_adp_cmpnt 0.041
s_rigid_bond_adp_cmpnt 0.006
s_anti_bump_dis_restr 0.04
s_non_zero_chiral_vol 0.083
s_zero_chiral_vol 0.077
s_from_restr_planes 0.0313
s_similar_dist 0.0
s_angle_d 0.038
s_bond_d 0.034
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.06
Number Disordered Residues 14.0
Occupancy Sum Hydrogen 243.0
Occupancy Sum Non Hydrogen 3067.42
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2602
Nucleic Acid Atoms 0
Heterogen Atoms 41
Solvent Atoms 487

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