X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 6.5
Temperature 291.0
Details CRYSTALS WERE GROWN USING THE VAPOR DIFFUSION TECHNIQUE. THE PROTEIN AT 15 MG/ML IN 10 MM TRIS-HCL PH7.8, 50 MM NACL, 15% GLYCEROL, 2 MM ATP, 2 MM L-PHE AND 4 MM MGCL2 WAS EQUILIBRATED WITH AN EQUAL VOLUME OF RESERVOIR SOLUTION CONTAINING 28-32%(W/V) METHOXY POLYETHYLENE GLYCOL 5000, 200 MM AMMONIUM SULFATE, AND 100 MM ADA PH6.5 AT 18C., vapor diffusion, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.68 α = 90
b = 154.77 β = 93.91
c = 65.3 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate -- 1996-09-09
Diffraction Radiation
Monochromator Protocol
Y --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, HAMBURG BW7B

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 20 96.4 0.051 -- -- 2.5 -- 91144 -- -- --
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 2.0 88.3 0.232 -- 2.7 1.9 --

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
MIR 1.9 20.0 -- 0.0 -- 91142 3656 95.3 -- 0.213 0.213 0.246 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 1.99 -- 437 9969 0.331 0.331 0.016 87.12
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 33.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.1
x_bond_d 0.008
x_angle_deg 1.37
x_dihedral_angle_d 24.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7897
Nucleic Acid Atoms 0
Heterogen Atoms 82
Solvent Atoms 569

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
CCP4 version: SUITE data reduction
MOSFLM data collection