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SOLID-STATE MAS NMR STRUCTURE OF THE A-SPECTRIN SH3 DOMAIN
SOLID-STATE NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
13C-13C PROTON-DRIVEN SPIN- DIFFUSION (PDSD)
A 200 MM (NH4)2SO4 SOLUTION WAS ADDED TO A 1.15 MM SH3 SOLUTION (PH=3.5) AT A VOLUME RATIO 1:1. THE SOLID SAMPLE WAS OBTAINED BY PRECIPITATION, CHANGING THE PH TO 7.5 IN NH3 ATMOSPHERE.
SOLID SAMPLE
7.5
AMBIENT
280
2
15N-15N PROTON-DRIVEN SPIN-DIFFUSION (PDSD)
A 200 MM (NH4)2SO4 SOLUTION WAS ADDED TO A 1.15 MM SH3 SOLUTION (PH=3.5) AT A VOLUME RATIO 1:1. THE SOLID SAMPLE WAS OBTAINED BY PRECIPITATION, CHANGING THE PH TO 7.5 IN NH3 ATMOSPHERE.
SOLID SAMPLE
7.5
AMBIENT
280
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
DMX
750
NMR Refinement
Method
Details
Software
SIMULATED ANNEALING, TORSION ANGLE DYNAMICS
THE STRUCTURES ARE BASED ON A TOTAL OF 286 13C-13C RESTRAINTS AND 6 15N-15N RESTRAINTS. ALL RESTRAINTS ARE EXTRACTED FROM PDSD SPECTRA.
CNS
NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
200
Conformers Submitted Total Number
12
Representative Model
1 (lowest energy)
Additional NMR Experimental Information
Details
THIS SOLID-STATE NMR STRUCTURE WAS DETERMINED BY COMBINING BROAD-BAND RECOUPLING METHODS WITH DILUTION OF THE 13C SPINS