SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample ContentsPERDEUTERATED SODIUM DODECYL SULFATE (SDS) IN 160 FOLD MOLAR EXCESS RELATIVE TO PEPTIDE CONCENTRATION
Solventn/a
Ionic Strengthn/a
pH4.1
Pressuren/a
Temperature (K)310
Experiment(s):2D NOESY, 2D-TOCSY, DQF-COSY
Spectrometer Information
Manufacturer Model Field Strength
BRUKER AMX 600 14.7
NMR Refinement
Method DISTANCE GEOMETRY/SIMULATED ANNEALING/RELAXATION MATRIX REFINEMENT
Details THE STRUCTURE OF APOC-II(44-79) IN THE PRESENCE OF SODIUM DODECYL SULFATE WAS REFINED USING A RELAXATION MATRIX REFINEMENT PROTOCOL BASED ON 241 NOESY CROSS- PEAK INTENSITIES MEASURED AT SEVEN DIFFERENT NOESY MIXING TIMES BETWEEN 75 MS AND 300 MS. NO DIHEDRAL RESTRAINTS WERE USED. THIS ENTRY CONTAINS 19 ACCEPTED STRUCTURES. ONE CALCULATED STRUCTURE WAS REJECTED BECAUSE OF HIGH COVALENT ENERGY. STRUCTURE CALCULATIONS WERE PERFORMED WITH THE PROGRAM X-PLOR (AXEL BRUNGER) INCLUDING DISTANCE GEOMETRY CALCULATIONS, SIMULATED ANNEALING (BOTH UNDER THE ISOLATED SPIN PAIR APPROXIMATION AND COMPLETE RELAXATION MATRIX CALCULATIONS) AS WELL AS ENERGY MINIMIZATION WITH A CONJUGATED GRADIENT. THE CHARMM FORCEFIELD WAS USED. FOR DETAILS ON STRUCTURE CALCULATION PLEASE SEE REFERENCE CITED UNDER "JRNL".
NMR Ensemble Information
Conformer Selection Criteria STRUCTURES WITH ACCEPTABLE COVALENT GEOMETRY
Conformers Calculated Total Number 20
Conformers Submitted Total Number 19
Representative Model Choice Rationale
1 lowest energy
Additional NMR Experimental Information
1 USING WATERGATE FOR WATER SUPPRESSION
Computation: NMR Software
# Classification Software Name Author
1 structure solution X-PLOR BRUNGER
2 refinement X-PLOR BRUNGER