X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details SITTING DROP WITH 200NL 20% PEG 3350 0.2M POTASSIUM THIOCYANATE AND 200NL 20MG/ML PEPTIDE STOCK IN WATER.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 25.81 α = 90
b = 25.81 β = 90
c = 148.6 γ = 120
Symmetry
Space Group P 31

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 2004-12-09
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 23-ID-D -- APS 23-ID-D

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
1.5 50 97.2 0.07 -- -- 5.17 -- 89229 -- 2.0 --

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 1.5 149.07 -- -- -- 16376 873 97.2 -- 0.239 0.237 0.276 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 1.5 1.54 -- 53 917 0.223 0.273 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 17.7
Anisotropic B[1][1] 1.22
Anisotropic B[1][2] 0.61
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.22
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.83
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 5.791
r_scbond_it 3.534
r_mcangle_it 2.127
r_mcbond_it 1.341
r_nbd_refined 0.222
r_gen_planes_refined 0.01
r_chiral_restr 0.129
r_dihedral_angle_4_deg 10.267
r_dihedral_angle_3_deg 14.937
r_dihedral_angle_2_deg 22.352
r_dihedral_angle_1_deg 4.189
r_angle_refined_deg 2.071
r_bond_refined_d 0.021
r_nbtor_refined 0.309
r_xyhbond_nbd_refined 0.123
r_symmetry_vdw_refined 0.273
r_symmetry_hbond_refined 0.286
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1022
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 55

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
HKL-2000 Data Reduction (data scaling)
REFMAC 5.2.0005 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.2.0005 refinement