SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 HNCA 90% WATER/10% D2O 0.250 ? 6.5 1 303
2 HN(CO)CA 90% WATER/10% D2O 0.250 ? 6.5 1 303
3 CBCANH 90% WATER/10% D2O 0.250 ? 6.5 1 303
4 CBCA(CO)NH 90% WATER/10% D2O 0.250 ? 6.5 1 303
5 C(CO)NH-TOCSY 90% WATER/10% D2O 0.250 ? 6.5 1 303
6 HCCH-TOCSY 90% WATER/10% D2O 0.250 ? 6.5 1 303
7 (HB)CB(CGCD)HD 90% WATER/10% D2O 0.250 ? 6.5 1 303
8 (HB)CB(CGCDCE)HE 90% WATER/10% D2O 0.250 ? 6.5 1 303
9 15N-EDITED NOESY-HSQC 90% WATER/10% D2O 0.250 ? 6.5 1 303
10 15N-EDITED TOCSY-HSQC 90% WATER/10% D2O 0.250 ? 6.5 1 303
11 3D HNHA 90% WATER/10% D2O 0.250 ? 6.5 1 303
12 2D NOESY 90% WATER/10% D2O 0.250 ? 6.5 1 303
13 2D TOCSY 90% WATER/10% D2O 0.250 ? 6.5 1 303
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
NMR Refinement
Method Details Software
simulated annealing THE STRUCTURE WAS DETERMINED USING 1104 DISTANCE RESTRAINTS, 42 DIHEDRAL ANGLE RESTRAINTS AND 14 HYDROGEN BOND RESTRAINTS. 50 STRUCTURES WERE CALCULATED AND REFINED USING AN AB INITIO SIMULATED ANNEALING PROTOCOL FOR X- PLOR AND THEN REFINED IN TWO STEPS. AN R-6 AVERAGING PROTOCOL WAS USED FOR NON-STEREOSPECIFICALLY ASSIGNED PROTONS [1]. DURING THE SIMULATED ANNEALING STEP AND THE FIRST REFINEMENT STEP ONLY THE REPULSIVE PART OF THE VAN DER WAALS INTERACTION WAS INCLUDED. IN THE SECOND REFINEMENT STEP THE VAN DER WAALS INTERACTION WAS PARAMETERIZED USING A LENNARD-JONES POTENTIAL INCLUDING THE ATTRACTIVE PART. 21 STRUCTURES WERE SELECTED ON THE BASIS OF CUMULATIVE RMSD VALUES OF STRUCTURES, ORDERED AFTER OVERALL ENERGY, AND RAMACHANDRAN BEHAVIOR FOR REGIONS WITH LOW RESTRAINT DENSITIES. [1] BRUNGER, A. T., CLORE, G. M., GRONENBORN, A. M. & KARPLUS, M. (1986). THREE-DIMENSIONAL STRUCTURE OF PROTEINS DETERMINED BY MOLECULAR DYNAMICS WITH INTERPROTON DISTANCE RESTRAINTS: APPLICATION TO CRAMBIN. PROC NATL ACAD SCI USA 83, 3801-3805. OTHER DETAILS OF STRUCTURE REFINEMENT CAN BE FOUND IN THE JRNL CITATION. 1
NMR Ensemble Information
Conformer Selection Criteria CUMULATIVE RMSD OF STRUCTURES SORTED AFTER TOTAL ENERGY
Conformers Calculated Total Number 21
Conformers Submitted Total Number 1
Representative Model 1 (?)
Computation: NMR Software
# Classification Version Software Name Author
1 refinement 3.851 X-PLOR BRUNGER STRUCTURAL STATISTICS: 21 SA STRUCTURES SAAVEMIN[A] RMS DEVIATIONS FROM EXP. RESTRAINTS NOE DISTANCE RESTRAINTS (1104) 0.036 A 0.032 A DIHEDRAL ANGLE RESTRAINTS (42) 0.380 DEG 0.380 DEG DEVIATIONS FROM IDEAL GEOMETRY BONDS 0.0045 A 0.0041 A ANGLES 0.71 DEG 0.66 DEG IMPROPERS 0.54 DEG 0.49 DEG
2 structure solution 5.3 VNMR ?
3 structure solution 970523) Pronto ?
4 structure solution 3.851) X-PLOR ?
5 structure solution 2.6) MOLMOL ?
6 structure solution ? PROCHECK / PROCHECK-NMR ?