X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.8
Details 1.4 M NA CITRATE PH 5.8

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 101.7 α = 90
b = 101.7 β = 90
c = 85.8 γ = 90
Symmetry
Space Group P 43

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1996-02
Diffraction Radiation
Monochromator Protocol
SI CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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 20 89.1 -- 5.5 -- -- -- 289824 -- -3.0 --
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)
2.1 2.14 94.4 -- 28.5 2.2 2.0 --

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
RIGID-BODY REFINEMENT 2.1 20.0 -- 2.0 -- 77876 6201 86.2 -- -- 0.195 0.219 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 2.12 -- 153 1705 0.264 0.301 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 37.1
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.5
x_bond_d 0.012
x_angle_deg 1.7
x_dihedral_angle_d 23.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Resolution Cutoff (Low) 20.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4753
Nucleic Acid Atoms 62
Heterogen Atoms 4
Solvent Atoms 316

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR 3.8 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.8 refinement
X-PLOR model building