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Complex of TM1a(1-14)Zip with TM9a(251-284): a model for the polymerization domain ("overlap region") of tropomyosin, Northeast Structural Genomics Target OR9
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
3D_15N-separated_NOESY
1mM complex of TM1a(1-14)Zip U-15N withTM9a(251-284)U15N
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5
0.14
6.5
ambient
10
2
3D_15N-separated_NOESY
1mM complex of TM1a(1-14)Zip U15N/U13C with TM9a(251-284) unlabled
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5
0.14
6.5
ambient
10
3
3D_13C-separated_NOESY
1mM complex of TM1a(1-14)Zip U15N/U13C with TM9a(251-284) unlabled
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5
0.14
6.5
ambient
10
4
13C X-filtered NOESY
1mM complex of TM1a(1-14)Zip U15N/U13C with TM9a(251-284) unlabled
100 mM NaCl, 10 mM sodium phospate 99.9% deuterium oxide pH 6.5
0.14
6.5
ambient
10
5
3D_15N-separated NOESY
1mM complex of TM1a(1-14)Zip unlabeled with TM9a(251-284)U15N/U13C
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5 or in 99.9% deuterium oxide
0.14
6.5
ambient
10
6
3D_13C-separated_NOESY
1mM complex of TM1a(1-14)Zip unlabeled with TM9a(251-284)U15N/U13C
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5 or in 99.9% deuterium oxide
0.14
6.5
ambient
10
7
13C X-filtered NOESY
1mM complex of TM1a(1-14)Zip unlabeled with TM9a(251-284)U15N/U13C
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide 99.9% deuterium oxide, pH 6.5
0.14
6.5
ambient
10
8
13C X-filtered NOESY
1mM complex of TM1a(1-14), one chain labeled U15N/U13C the other chain unlabeled, with unlabeled TM9a(251-284)
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5
0.14
6.5
ambient
10
9
13C X-filtered NOESY
1mM complex of TM9a(251-284), one chain labeled U15N/U13C the other chain unlabeled, with unlabele TM1a(1-14)Zip
100 mM NaCl, 10 mM sodium phospate 10% deuterium oxide pH 6.5
0.14
6.5
ambient
10
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
INOVA
500
2
Varian
INOVA
600
3
Bruker
AVANCE
600
NMR Refinement
Method
Details
Software
Initail structure was calculated with Torsion Angle Dynamics and refined with simulated annealing and included a term for explicit solvent in the refinement protocol.
The structures were based on a total of 2630 restraints, 2198 conformationally restricting NOEs, 232 dihedral angle constraints and 200 hydrogen bond constraints
AutoStructure
NMR Ensemble Information
Conformer Selection Criteria
10 structures from initial DYANA calcultions with the lowest target functions were refined using CNS. The structures back calculated data agree with experimental NOESY spectra. The structures have acceptable covalent geometry, favorable non-bond energy, the lowest energy and the fewest restraint violations.