SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents0.2 MM P15, U-15N; 4 MM HEPES, 1 MM DTT, 5 UM EDTA
Solvent95% H2O/5% D2O
Ionic Strength0.1
pH7.5
PressureAMBIENT
Temperature (K)293
Experiment(s):3D_15N-SEPARATED_NOESY
Sample Contents0.2 MM P15, U-15N,13C; 4 MM HEPES, 1 MM DTT, 5 UM EDTA
Solvent95% H2O/5% D2O
Ionic Strength0.1
pH7.5
PressureAMBIENT
Temperature (K)293
Experiment(s):HNCA, CBCA(CO)NH
Sample Contents0.2 MM P15, U-15N,13C; 4 MM HEPES, 1 MM DTT, 5 UM EDTA
Solvent100% D2O
Ionic Strength0.1
pH7.5
PressureAMBIENT
Temperature (K)293
Experiment(s):3D_13C-SEPARATED_NOESY, 3D_13C-SEPARATED_TOCSY
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 800.0
Bruker DMX 600.0
NMR Refinement
Method COMPARATIVE MODELING, RESTRAINT ENERGY MINIMIZATION
Details DUE TO THE STRUCTURAL FLEXIBILITY AND INSTABILITY OF P15, ONLY A LIMITED NUMBER OF NMR CONSTRAINTS WERE COLLECTED. BECAUSE P15 SHARES MORE THAN 85% SEQUENCE HOMOLOGY WITH P16, 19 P15 STRUCTURES WERE GENERATED BY USING COMPARATIVE MODELING (MODELLER-4) WITH AN ENSEMBLE OF P16(INK4A) NMR STRUCTURES AS TEMPLATES. THE MODELING STRUCTURES WERE THEN SUBJECTED TO 1400 STEPS OF RESTRAINT ENERGY MINIMIZATION (X-PLOR) WITH THE NMR DATA (672 DISTANCE CONSTRAINTS). THE STRUCTURES THAT SATISFY THE NMR CONSTRAINTS WERE PICKED TO REPRESENT P15(INK4B).
NMR Ensemble Information
Conformer Selection Criteria STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS, STRUCTURES WITH THE LOWEST ENERGY
Conformers Calculated Total Number 19
Conformers Submitted Total Number 10
Representative Model Choice Rationale
1 minimized average structure
Additional NMR Experimental Information
1 TRIPLE-RESONANCE NMR SPECTROSCOPY WAS USED TO DETERMINE THE P15 STRUCTURE
Computation: NMR Software
# Classification Software Name Author
1 collection version: 2.1 XWINNMR BRUKER
2 refinement version: 3.1 X-PLOR BRUNGER
3 structure solution version: 4.0 MODELLER-4 SALI