8P7G

Structural characterization of PHOX2B and its DNA interactions shed lights into the molecular basis of the + 7Ala variant pathogenicity in CCHS

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600
2	2D 1H-15N HSQC	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600
3	3D HNCA	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600
4	3D CBCA(CO)NH	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600
5	3D HNCO	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600
6	3D HNHA	0.1 mM [U-13C; U-15N] Paired mesoderm homeobox protein 2B (Phox2B)	90% H2O/10% D2O	200 mM	7.4	1 atm	298	Bruker AVANCE III HD 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III HD	600

NMR Refinement
Method	Details	Software
na		CS-ROSETTA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	3000
Conformers Submitted Total Number	20
Representative Model	4 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CARA		Keller and Wuthrich
5	chemical shift assignment	Sparky		Goddard
2	structure calculation	CS-ROSETTA		Shen, Vernon, Baker and Bax
3	refinement	CS-ROSETTA		Shen, Vernon, Baker and Bax
4	peak picking	CARA		Keller and Wuthrich

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.