X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 3.8
Details PROTEIN WAS CRYSTALLIZED FROM 50 MM KH2PO4 AND 20 % (W/V) PEG 8000, PH 3.8.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.9 α = 90
b = 63.2 β = 90
c = 68.8 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-09
Diffraction Radiation
Monochromator Protocol
NI FILTER --
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
2.13 20 91.3 -- 0.061 -- 4.8 -- 13001 -- 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)
2.13 2.2 54.5 -- 0.186 3.9 5.3 --

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 2.13 20.0 -- 0.0 12458 13001 607 90.0 -- -- 0.196 0.25 --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL
RMS Deviations
Key Refinement Restraint Deviation
t_nbd 0.032
t_it 2.327
t_gen_planes 0.014
t_trig_c_planes 0.006
t_incorr_chiral_ct 0.0
t_dihedral_angle_d 19.508
t_angle_deg 1.534
t_bond_d 0.011
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1814
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 74

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 Data Reduction (data scaling)
TNT Structure Solution
TNT V. 5-E Structure Refinement
Software
Software Name Purpose
TNT version: 5E refinement
TNT model building