X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.25
Temperature 293.0
Details 1.8M NH4H2PO4, pH 4.00-4.50, VAPOR DIFFUSION, HANGING DROP at 293K, pH 4.25

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.6 α = 90
b = 116.94 β = 90.7
c = 36.8 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1996-04-18
Diffraction Radiation
Monochromator Protocol
graphite SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU 1.5418 -- --

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 32 90.9 0.071 0.071 -- -- 44226 40199 -- -3.0 12.4
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)
2.0 2.03 74.2 0.21 0.21 -- -- --

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 2.0 29.01 0.0 0.0 44226 40191 2040 90.8 0.1799 0.178 0.178 0.215 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 2.0 2.13 -- 318 5818 0.227 0.252 0.014 83.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 21.2
Anisotropic B[1][1] -5.02
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.99
Anisotropic B[2][2] -4.15
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.17
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 1.77
c_mcbond_it 1.26
c_angle_deg 1.5
c_dihedral_angle_d 22.0
c_improper_angle_d 1.0
c_scbond_it 2.01
c_scangle_it 2.8
c_bond_d 0.014
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4918
Nucleic Acid Atoms 0
Heterogen Atoms 90
Solvent Atoms 347

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
CNS refinement version: 0.9