X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 100MM SODIUM CITRATE BUFFER, PH 5.6, CONTAINING 200MM AMMONIUM ACETATE AND 26% PEG 4000. MIXED IN EQUAL VOLUME WITH AHPD (4.5 MG/ML) IN 25 MM MOPS BUFFER, PH 7.2, CONTAINING 50 MM KCL, 10% GLYCEROL, 0.1MM EDTA

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 186.38 α = 90
b = 117.28 β = 113.97
c = 88.99 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH MIRRORS 2001-06-15
Diffraction Radiation
Monochromator Protocol
SI 111 MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 0.88550,0.918400,0.978900 , 0.97877 ESRF BM14

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
1.9 30 99.5 0.072 -- -- 3.7 -- 136927 -- 2.0 19.1
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)
1.9 1.97 99.3 0.42 -- 2.75 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 1.9 29.6 -- 2.0 -- 136435 13434 99.5 -- 0.243 0.243 0.313 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 1.9 1.97 -- 1360 12042 0.3176 0.3937 0.008 98.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 33.8
Anisotropic B[1][1] 2.61
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.36
Anisotropic B[2][2] -0.91
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.7
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 18.7093
c_improper_angle_d 0.91609
c_bond_d 0.00922
c_scangle_it 13.399
c_angle_deg 1.3408
c_mcbond_it 11.088
c_mcangle_it 11.295
c_scbond_it 11.957
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.25
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.36
Luzzati Sigma A (R-Free Set) 0.32
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 15327
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 847

Software

Software
Software Name Purpose
CNS refinement version: 1.0
HKL data reduction
SCALEPACK data scaling
CNS phasing