X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 1.2M KNA TARTRATE, 0.1M HEPES 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 145.29 α = 90
b = 145.29 β = 90
c = 145.29 γ = 90
Symmetry
Space Group I 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD (QUANTUM-4) ADSC -- 2005-09-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X29A -- NSLS X29A

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
2.68 50 98.8 0.05 -- -- 6.8 -- 14312 -- -3.0 --
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)
2.68 2.89 94.2 0.38 -- 2.8 5.3 --

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 2.68 24.91 -- -- -- 13557 719 98.8 -- 0.2 0.197 0.263 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 2.68 2.75 -- 43 869 0.308 0.323 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 61.92
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 4.238
r_scbond_it 2.615
r_mcangle_it 2.125
r_mcbond_it 1.126
r_nbd_refined 0.257
r_gen_planes_refined 0.007
r_chiral_restr 0.114
r_dihedral_angle_4_deg 20.039
r_dihedral_angle_3_deg 20.366
r_dihedral_angle_2_deg 38.024
r_dihedral_angle_1_deg 6.745
r_angle_refined_deg 1.868
r_bond_refined_d 0.019
r_nbtor_refined 0.328
r_xyhbond_nbd_refined 0.193
r_symmetry_vdw_refined 0.231
r_symmetry_hbond_refined 0.176
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2400
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 57

Software

Computing
Computing Package Purpose
HKL2000 Data Reduction (intensity integration)
HKL2000 Data Reduction (data scaling)
PHASER Structure Solution
REFMAC 5.2.0019 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.2.0019 refinement
PHASER model building