X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 3.5
Details CRYSTALS WERE GROWN FROM 2.7M AMMONIUM SULFATE SOLUTION AT PH 3.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.1 α = 90
b = 81.1 β = 90
c = 118.46 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE WEISSENBERG -- 1995-03-10
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-6A -- PHOTON FACTORY BL-6A

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
1.8 50 93.7 0.069 -- -- 7.14 -- 35030 -- 0.5 --

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
-- 1.8 6.0 -- 1.0 -- 33901 -- -- -- -- 0.186 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.11
RMS Deviations
Key Refinement Restraint Deviation
p_chiral_restr 0.177
p_singtor_nbd 0.174
p_angle_d 0.03
p_staggered_tor 15.2
p_scbond_it 2.198
p_xyhbond_nbd 0.178
p_planar_tor 2.6
p_plane_restr 0.015
p_transverse_tor 28.7
p_planar_d 0.043
p_scangle_it 3.121
p_mcbond_it 1.318
p_bond_d 0.015
p_multtor_nbd 0.16
p_mcangle_it 1.983
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1988
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 224

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
X-PLOR 3.1 Structure Solution
PROLSQ, X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 model building
PROLSQ refinement
DENZO data collection
X-PLOR version: 3.1 refinement