1PWT

THERMODYNAMIC ANALYSIS OF ALPHA-SPECTRIN SH3 AND TWO OF ITS CIRCULAR PERMUTANTS WITH DIFFERENT LOOP LENGTHS: DISCERNING THE REASONS FOR RAPID FOLDING IN PROTEINS


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4
Details pH 4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 33 α = 90
b = 42.4 β = 90
c = 49.7 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 180 mm plate -- --
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- CONVENTIONAL Cu -- -- --

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
1.77 15 99.8 0.05 -- -- 6.1 -- 7163 -- -- 18.9
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)
1.77 1.8 96.8 0.2 -- 5.9 -- --

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 1.77 14.5 -- 0.0 -- 7159 335 99.8 -- 0.189 0.187 0.246 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 22.9
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 15.0
p_transverse_tor 48.6
p_staggered_tor 15.0
p_planar_tor 3.7
p_xyhbond_nbd 0.217
p_multtor_nbd 0.263
p_bond_d 0.011
p_angle_d 0.029
p_planar_d 0.028
p_mcbond_it 1.223
p_mcangle_it 2.094
p_scbond_it 1.569
p_scangle_it 2.375
p_plane_restr 0.02
p_chiral_restr 0.094
p_singtor_nbd 0.195
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 495
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 88

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMORE model building