1BFJ

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

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	VARIOUS			50 mM	7.5	1 atm	290

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	600

NMR Refinement
Method	Details	Software
simulated annealing	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.	X-PLOR

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	Version	Software Name	Author
1	refinement	X-PLOR	3.84	BRUNGER
2	structure solution	XPLOR

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.