X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 277.0
Details 28 mg/ml protein, 25 mM zinc chloride, 0.1 M Tris-Hcl, pH 7.50, BATCH, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.75 α = 90
b = 74.56 β = 90
c = 43.94 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 210 -- 2006-11-02
Diffraction Radiation
Monochromator Protocol
SI(111), DOUBLE-FOCUSED MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F2 1.2827, 1.2818, 1.2567 CHESS F2

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
1.8 30 98.2 -- 0.072 -- 7.3 -- 7849 -- -- 20.5
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)
1.8 1.9 96.4 -- 0.389 4.6 7.4 --

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 1.8 28.43 -- -- 7397 7397 378 100.0 -- 0.209 0.207 0.25 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 1.8 1.85 -- 23 487 0.254 0.365 -- 100.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 11.05
Anisotropic B[1][1] -0.8
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.8
RMS Deviations
Key Refinement Restraint Deviation
r_metal_ion_refined 0.089
r_scangle_it 2.145
r_chiral_restr 0.082
r_mcangle_it 0.696
r_mcbond_it 0.4
r_symmetry_hbond_refined 0.173
r_symmetry_metal_ion_refined 0.173
r_scbond_it 1.296
r_dihedral_angle_3_deg 14.967
r_dihedral_angle_4_deg 21.412
r_nbd_refined 0.2
r_dihedral_angle_2_deg 33.66
r_symmetry_vdw_refined 0.202
r_angle_refined_deg 1.109
r_dihedral_angle_1_deg 5.432
r_bond_refined_d 0.008
r_nbtor_refined 0.295
r_gen_planes_refined 0.004
r_xyhbond_nbd_refined 0.159
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 714
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 97

Software

Software
Software Name Purpose
REFMAC refinement version: 5.3.0021
DPS data reduction
MOSFLM data reduction
SCALA data scaling
SOLVE phasing