2LEW

Structural Plasticity of Paneth cell alpha-Defensins: Characterization of Salt-Bridge Deficient Analogues of Mouse Cryptdin-4

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	0.3 mg (E15G)-Crp4	90% H2O/10% D2O		4		298
2	2D DQF-COSY	0.3 mg (E15G)-Crp4	90% H2O/10% D2O		4		298
3	2D 1H-1H TOCSY	0.3 mg (E15G)-Crp4	90% H2O/10% D2O		4		298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Avance	500
2	Bruker	Avance	600
3	Bruker	Avance	900

NMR Refinement
Method	Details	Software
simulated annealing	Torsion angle dynamics followed by refinement by Cartesian dynamics in explicit water.	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS		Brunger, Adams, Clore, Gros, Nilges and Read
2	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.