1WLX

Solution structure of the third spectrin repeat of alpha-actinin-4

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.6mM actinin-4; 25mM phosphate buffer; 100mM NaCl; 90% H2O, 10% D2O; 0.01% NaN3	90% H2O/10% D2O	100mM NaCl	6.75	ambient	298
2	2D NOESY	0.6mM actinin-4; 25mM phosphate buffer; 100mM NaCl; 90% H2O, 10% D2O; 0.01% NaN3	100% D2O	100mM NaCl	6.75	ambient	298
3	3D_15N-separated_NOESY	0.6mM actinin-4 U-15N; 25mM phosphate buffer; 100mM NaCl; 90% H2O, 10% D2O; 0.01% NaN3	90% H2O/10% D2O	100mM NaCl	6.75	ambient	298
4	HNHA	0.6mM actinin-4 U-15N; 25mM phosphate buffer; 100mM NaCl; 90% H2O, 10% D2O; 0.01% NaN3	90% H2O/10% D2O	100mM NaCl	6.75	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	600

NMR Refinement
Method	Details	Software
simulated annealing, molecular dynamics, torsion angle dynamics	Structures are based on a total of 2256 restraints; 2021 NOE-derived distance constraints, 235 dihedral angle restraints	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Assignments were obtained using HNCACB, CBCA(CO)NH, HNCO, H(CCO)NH-TOCSY, C(CO)NH-TOCSY, 15N NOESY-HSQC, 13C HSQC, 1H TOCSY, 1H NOESY

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	1.8	Delaglio et al
2	data analysis	Sparky	3.11	Goddard and Kneller
3	structure solution	CNS	1.1	Brunger et al
4	structure solution	ARIA	1.2	Linge and Nilges
5	refinement	ARIA	1.2	Linge and Nilges