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SOLUTION NMR STRUCTURE OF TUMOR SUPPRESSOR P16INK4A, RESTRAINED MINIMIZED MEAN STRUCTURE
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
NMR EXPERIMENTS FOR THE ASSIGNMENTS AND STRUCTURE CALCULATIONS : HNCACB
H2O AND D2O
CA. 0
7.5
NO
293
2
HNCA
H2O AND D2O
CA. 0
7.5
NO
293
3
CBCA(CO)HN
H2O AND D2O
CA. 0
7.5
NO
293
4
HN(CO)CA
H2O AND D2O
CA. 0
7.5
NO
293
5
HCCH-TOCSY
H2O AND D2O
CA. 0
7.5
NO
293
6
HNHA
H2O AND D2O
CA. 0
7.5
NO
293
7
3D 15N-EDITED NOESY AND TOCSY
H2O AND D2O
CA. 0
7.5
NO
293
8
2D NOESY AND TOCSY
H2O AND D2O
CA. 0
7.5
NO
293
9
3D 13C-EDITED NOESY
H2O AND D2O
CA. 0
7.5
NO
293
10
3D 15N/13C SIMULTANEOUSLY EDITED NOESY
H2O AND D2O
CA. 0
7.5
NO
293
11
4D 15N/13C-EDITED NOESY
H2O AND D2O
CA. 0
7.5
NO
293
12
4D 13C/13C-EDITED NOESY.
H2O AND D2O
CA. 0
7.5
NO
293
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
DMX600
600
2
Bruker
DRX800
800
NMR Refinement
Method
Details
Software
simulated annealing
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
CLOSEST TO MEAN STRUCTURE WHICH SHOWS GOOD AGREEMENT WITH THE CONSTRAINTS. NONE OF THE CONSTRAINTS SHOW NOE VIOLATION BIGGER THAN 0.5 A AND DIHEDRAL ANGLE VIOLATION BIGGER THAN 5 DEGREE.
Conformers Calculated Total Number
90
Conformers Submitted Total Number
1
Additional NMR Experimental Information
Details
THE SOLUTION STRUCTURE OF THE TUMOR SUPPRESSOR P16INK4A HAS BEEN DETERMINED BY MULTI-DIMENSIONAL HERERONUCLEAR NMR. THE STRUCTURES WERE CALCULATED USING THE SIMULATED ANNEALING PROTOCOL OF NILGES ET AL. (1988) FEBS LETT. 229, 129-136 USING THE PROGRAM X-PLOR 3.1 (BRUNGER). THE CALCULATION IS BASED ON 1437 EXPERIMENTAL NMR RESTRAINTS (1370 DISTANCE AND 67 TORSION ANGLE RESTRAINTS).