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SOLUTION STRUCTURE OF THE C-TERMINAL SH2 DOMAIN OF THE P85ALPHA REGULATORY SUBUNIT OF PHOSPHOINOSITIDE 3-KINASE, NMR, MINIMIZED AVERAGE STRUCTURE


SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Spectrometer Information
Manufacturer Model Field Strength
VARIAN UNITY PLUS 600.0
NMR Refinement
Method SIMULATED ANNEALING
Details 30 CONFORMERS WERE DETERMINED BY RESTRAINED MOLECULAR DYNAMICS/SIMULATED ANNEALING METHOD USING THE PROGRAM X-PLOR 3.84. THE STRUCTURES ARE BASED ON 1908 INTERPROTON DISTANCE RESTRAINTS DERIVED FROM NOE MEASUREMENTS; 88 HYDROGEN-BONDING DISTANCE RESTRAINTS FOR 44 HYDROGEN-BONDS IDENTIFIED ON THE BASIS OF THE NOE AND AMIDE PROTON EXCHANGE DATA; 25 TORSION ANGLE RESTRAINTS DERIVED FROM COUPLING CONSTANTS AND NOE DATA. THE RMS DISTRIBUTION ABOUT THE MEAN COORDINATE POSITIONS IS 0.57 ANGSTROMS FOR ALL BACKBONE ATOMS AND 1.12 ANGSTROMS FOR ALL ATOMS. THE AVERAGE STRUCTURE WAS THEN CALCULATED BY BEST FIT SUPERPOSITION, COORDINATE AVERAGING AND RESTRAINED ENERGY MINIMIZATION.
NMR Ensemble Information
Conformer Selection Criteria NO NOE VIOLATION > 0.3A, NO DIHEDRAL VIOLATION > 3.0
Conformers Calculated Total Number 100
Conformers Submitted Total Number 1
Computation: NMR Software
# Classification Software Name Author
1 structure solution XPLOR n/a
2 refinement X-PLOR 3.84 BRUNGER