X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 40% PEG400, 0.15M NACL, 0.1M HEPES 8.0, pH 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 145.72 α = 90
b = 145.72 β = 90
c = 145.72 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 -- 2005-08-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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
2.73 50 99.8 0.05 -- -- 6.1 -- 13877 -- -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)
2.73 2.94 99.8 0.37 -- 4.3 4.9 --

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 2.73 24.99 -- -- -- 12783 987 99.6 -- 0.212 0.208 0.262 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 2.73 2.8 -- 74 952 0.358 0.474 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 56.8
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 3.994
r_scbond_it 2.387
r_mcangle_it 2.094
r_mcbond_it 1.141
r_nbd_refined 0.244
r_gen_planes_refined 0.006
r_chiral_restr 0.116
r_dihedral_angle_4_deg 17.081
r_dihedral_angle_3_deg 19.498
r_dihedral_angle_2_deg 41.052
r_dihedral_angle_1_deg 6.943
r_angle_refined_deg 1.809
r_bond_refined_d 0.018
r_nbtor_refined 0.327
r_xyhbond_nbd_refined 0.211
r_symmetry_vdw_refined 0.193
r_symmetry_hbond_refined 0.196
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2413
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 74

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