2D46 | pdb_00002d46

Solution Structure of the Human Beta4a-A Domain

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3	90% H2O/10% D2O	150mM NaCl	5.5	ambient	277
2	3D_13C-separated_NOESY	3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3	90% H2O/10% D2O	150mM NaCl	5.5	ambient	277
3	HNHA	3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3	90% H2O/10% D2O	150mM NaCl	5.5	ambient	277
4	2D TOCSY	3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3	90% H2O/10% D2O	150mM NaCl	5.5	ambient	277
5	2D NOESY	3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3	90% H2O/10% D2O	150mM NaCl	5.5	ambient	277

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500

NMR Refinement
Method	Details	Software
simulated annealing	A total of 1213 structural restraints were used to calculate determine the final 15 representative solution structures of the beta4a A domain. 963 NOE derived distance constraints were utilized in the calculation, of which 472 were intra-residue, 196 sequential, 87 medium-range (4<\|i-j\|>1) and 208 long-range (\|i-j\|≥4), providing for an average total of 15.8 NOE constraints/residue.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	15
Conformers Submitted Total Number	1
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopic techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	4.1	Delaglio, F.
2	data analysis	NMRView	5.0.4	Johnson, B.
3	data analysis	ANSIG	Ansig for Windows	Helgstrand
4	structure solution	CNS	1.1	Brunger, T.
5	refinement	CNS	1.1	Brunger, T.