X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details PROTEIN WAS CRYSTALLIZED FROM 0.1M TRIS/HCL, PH 7.0, 0.2M AMMONIUM SULPHATE, 5 MM DTT, 15% PEG 4000, 20% GLYCEROL, AT 290K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.78 α = 90
b = 82.44 β = 90
c = 137.78 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 ADSC MIRRORS 2002-11-15
Diffraction Radiation
Monochromator Protocol
SI(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.2 0.960,0.97916,0.97966 SRS PX14.2

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
1.7 70.71 99.6 0.065 -- -- 4.3 -- 62044 -- -- --
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)
1.7 1.79 98.1 0.416 -- 1.7 3.4 --

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
MAD 1.7 70.71 -- -- -- 58574 3125 99.5 -- -- 0.21 0.252 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 1.7 1.74 -- 224 4211 0.274 0.335 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.8
Anisotropic B[1][1] 1.39
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.09
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.3
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 5.64
r_scbond_it 3.333
r_mcangle_it 2.253
r_mcbond_it 1.292
r_nbd_refined 0.225
r_gen_planes_refined 0.009
r_chiral_restr 0.123
r_dihedral_angle_1_deg 6.668
r_angle_refined_deg 1.78
r_bond_refined_d 0.02
r_xyhbond_nbd_refined 0.166
r_metal_ion_refined 0.176
r_symmetry_vdw_refined 0.233
r_symmetry_hbond_refined 0.239
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3934
Nucleic Acid Atoms 0
Heterogen Atoms 3
Solvent Atoms 378

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SOLVE Structure Solution
REFMAC 5.1.27 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.1.27 refinement
SOLVE model building