X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microliter Drops
pH 6.5
Temperature 277.0
Details CRYSTALLIZATION CONDITIONS: 10 MG/ML PROTEIN IN 0.1 M MES (PH 6.5) BUFFER. 10 MICROLITER DROPS IN 9 WELL DEPRESSION PLATE IN A PLASTIC SANDWICH BOX CONTAINING 15 MILLILITER OF 0.1 M MES(PH 6.5) + 16 % MPD. EVERY ALTERNATE DAY, MPD CONCENTRATION INCREASED BY 1 % UNTIL FINAL CONCENTRATION REACHED 25 %. 4 DEGREE C. WITHIN 15 DAYS, 0.2 X 0.3 X 0.4 MM CRYSTALS., microliter drops, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 69.05 α = 90
b = 92.52 β = 99.47
c = 51.58 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU MSC/YALE MIRRORS 1995-03-26
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
2.1 30 91.6 -- 0.089 -- 2.7 -- 31919 -- -- 19.1

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 2.1 8.0 -- 0.0 -- 29811 2997 93.7 -- 0.209 0.209 0.272 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 2.1 2.23 -- 87 950 0.323 0.342 0.037 17.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 24.0
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.009
x_improper_angle_d 2.11
x_scbond_it 4.15
x_mcangle_it 3.59
x_dihedral_angle_d 26.8
x_angle_deg 1.1
x_mcbond_it 2.49
x_scangle_it 5.77
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.28
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.35
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4496
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 313

Software

Software
Software Name Purpose
AMoRE phasing
X-PLOR refinement version: 3.1
DENZO data reduction