X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 9
Details HANGING DROP METHOD: A SOLUTION OF 18 MG OF PROTEIN PER ML IN 20 MM TRIS/HCL, PH 9.0, 2 MM CA-CHLORIDE, MIXED WITH AN EQUAL VOLUME OF 0.1 M IMIDAZOLE, PH7.5,2 MM CA-CHLORIDE, 10% (BY WEIGHT) PEG 8000 AND 8% (BY VOL.) ETHYLENE GLYCOL., vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.95 α = 92.6
b = 46.55 β = 109.28
c = 63.99 γ = 116.68
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 294
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1995-01
Diffraction Radiation
Monochromator Protocol
NI FILTER --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU FR-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
2.07 29.62 93.5 0.109 0.109 -- 1.8 -- 24275 -- -- 20.94
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)
2.07 2.15 90.0 0.196 0.19 3.3 1.8 --

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 2.07 9.99 -- 0.0 -- 24053 2381 93.5 -- -- 0.176 0.235 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.8
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_staggered_tor 16.3
p_planar_tor 4.9
p_bond_d 0.013
p_angle_d 0.033
p_planar_d 0.034
p_mcbond_it 2.196
p_mcangle_it 3.067
p_scbond_it 2.403
p_scangle_it 3.447
p_chiral_restr 0.137
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 9.99
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3376
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 244

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMORE model building
SCALA data reduction
DENZO data collection