2MKH

Solution structure of tandem RRM domains of cytoplasmic polyadenylation element binding protein 1 (CPEB1) in free state

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
2	2D 1H-13C HSQC	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
3	2D 1H-13C HSQC aliphatic	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
4	2D 1H-13C HSQC aromatic	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
5	2D 1H-1H TOCSY	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
6	2D 1H-1H NOESY	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
7	3D HNCO	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
8	3D CBCA(CO)NH	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
9	3D HNCACB	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
10	3D HCCH-TOCSY	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
11	3D 1H-15N NOESY	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
12	3D 1H-13C NOESY aliphatic	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
13	3D 1H-13C NOESY aromatic	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
14	3D HNCA	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303
15	3D HN(CO)CA	100 mM sodium chloride-1, 1 mM DTT-2, 1 mM magnesium sulphate-3, 50 mM sodium phosphate-4	90% H2O/10% D2O	0.15	6.5	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900
2	Bruker	AVANCE	700
3	Bruker	AVANCE	600
4	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
simulated annealing		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	30
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	Amber		Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, ... and Kollman

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.