Find PDB structures and Computed Structure Models (CSM) by combining queries from tools in this suite: Attribute Search, Sequence Similarity, Sequence Motif, 3D Similarity, and 3D Motif with 'AND' logic.
COOPERATIVITY IN EF-HAND CA2+-BINDING PROTEINS: EVIDENCE OF SITE-SITE COMMUNICATION FROM BINDING-INDUCED CHANGES IN STRUCTURE AND DYNAMICS OF N56A CALBINDIN D9K
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
4 MM N56A-CALBINDIN D9K
0
6.0
AMBIENT
300
2
3D_15N-SEPARATED_NOESY
4 MM 15N-LABELED N56A-CALBINDIN D9K;
0
6.0
AMBIENT
300
3
HSQC-J
4 MM 15N-LABELED N56A-CALBINDIN D9K;
0
6.0
AMBIENT
300
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AMX
500
2
Bruker
DRX
600
3
Varian
INOVA
600
NMR Refinement
Method
Details
Software
DISTANCE GEOMETRY FOLLOWED BY SIMULATED ANNEALING
NMR REFINEMENT WAS BASED ON A TOTAL OF 910 NOE-DERIVED DISTANCE CONSTRAINTS AND 78 TORSION ANGLE CONSTRAINTS. SIMULATED ANNEALING CYCLE OF 20 PS HEATING TO 1200 K.
Felix
NMR Ensemble Information
Conformer Selection Criteria
STRUCTURES WITH ACCEPTABLE MOLECULAR ENEGIES WERE ORDERED BY LEAST RESTRAINT VIOLATIONS. THE 24 BEST CONFORMERS WERE SELECTED TO FACILITATE COMPARISON TO PREVIOUS STRUCTURES OF THE PROTEIN AND BECAUSE THIS SURPASSES THE STATISTICAL REQUIREMENT TO REPRESENT ALL OF CONFORMATIONAL SPACE CONSISTENT WITH THE DATA.
Conformers Calculated Total Number
50
Conformers Submitted Total Number
24
Representative Model
1 (closest to the average)
Additional NMR Experimental Information
Details
1H RESONANCE ASIGNMENTS WERE REPORTED IN THE PROTEIN SCIENCE PAPER BY WIMBERLY ET AL. A 3D 15N SPARATED TOCSY WAS RECORDED TO CONFIRM THESE ASSIGNMENTS AND ASSIGN THE 15N RESONANCES.