X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.6
Temperature 293.0
Details EQUILIBRATION AGAINST RESERVOIR OF 20% (V/V) DIOXANE, 2% (V/V) ETHYLENE GLYCOL AND 5 MM DTT. DROPS WERE FORMED BY MIXING 2.5 UL PROTEIN-DNA COMPLEX (10 MG/ML PROTEIN; 1.1 FOLD MOLAR EXCESS DNA) IN BUFFER (20 MM TRIS-HCL PH 7.6, 300 MM NACL, 0.1 MM EDTA, 1 MM DTT, 0.02% NA AZIDE) WITH 2.5 UL DISTILLED WATER, 2.5 UL RESERVOIR SOLUTION AND 1.5 UL 350 MM N-HEPTYL-B-D-GLUCOSIDE, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 80.29 α = 90
b = 87.82 β = 90
c = 99.45 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1998-09-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
1.7 30 99.4 0.059 -- -- 3.7 77509 77509 0.0 -3.0 20.9
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)
1.7 1.76 95.4 0.519 -- 2.1 2.2 --

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 1.7 8.0 -- 2.0 77509 75657 3845 99.4 -- 0.19 0.19 0.253 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 1.7 1.78 -- 458 8424 0.402 0.45 -- 96.9
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.33
Anisotropic B[1][1] -0.73
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.096
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 4.462
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.6
x_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.197
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4997
Nucleic Acid Atoms 490
Heterogen Atoms 60
Solvent Atoms 474

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement version: 3.851
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing