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_angle_d 0.033
p_bond_d 0.013
p_special_tor 0.0
p_staggered_tor 16.3
p_scangle_it 3.447
p_planar_tor 4.9
p_mcangle_it 3.067
p_scbond_it 2.403
p_chiral_restr 0.137
p_planar_d 0.034
p_mcbond_it 2.196
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

Software
Software Name Purpose
DENZO data reduction
SCALA data scaling
AMoRE phasing
REFMAC refinement
CCP4 data scaling version: (SCALA)