X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details PROTEIN WAS CRYSTALLIZED FROM 70% SATURATED AMMONIUM SULFATE SOLUTION, 0.3M KCL, 100MM NAHCO3 AT PH8.0, 0.5% V/V PEG600

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.9 α = 90
b = 94.2 β = 90
c = 138.3 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 300
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS COLLIMATOR 1996-10
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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 30 89.0 0.079 -- -- 4.9 -- 29813 -- 0.0 --
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)
1.8 1.91 66.0 0.408 -- 1.8 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
DIFFERENCE FOURIER 1.8 30.0 -- 0.0 29777 -- 2981 88.8 0.196 0.191 -- 0.256 EVERY 10TH REFLECTION
RMS Deviations
Key Refinement Restraint Deviation
s_similar_adp_cmpnt 0.082
s_anti_bump_dis_restr 0.118
s_non_zero_chiral_vol 0.109
s_zero_chiral_vol 0.102
s_from_restr_planes 0.034
s_angle_d 0.04
s_bond_d 0.02
Coordinate Error
Parameter Value
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 2122.0
Occupancy Sum Non Hydrogen 2203.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2033
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 212

Software

Computing
Computing Package Purpose
XENGEN V. 3.0 Data Reduction (intensity integration)
XENGEN V. 3.0 Data Reduction (data scaling)
SHELXL-97, X-PLOR Structure Solution
SHELXL-97, X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
SHELXL-97 refinement
X-PLOR model building
SHELXL-97 model building