1FWQ

SOLUTION STRUCTURE OF HUMAN MSS4, A GUANINE NUCLEOTIDE EXCHANGE FACTOR FOR RAB PROTEINS

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_TOCSY	3mM Mss4, U-15N; 40mM Tris (pH 6.5), 100mM KCl, 2mM DTT	90% H2O/10% D2O	100mM	6.5	1 atm	303
2	HNCA, HNCOCA, HNCO	3mM Mss4, U-15N,13C; 40mM Tris (pH 6.5), 100mM KCl, 2mM DTT	90% H2O/10% D2O	100mM	6.5	1 atm	303
3	HCCH-TOCSY	3mM Mss4, U-15N,13C; 40mM Tris (pH 6.5), 100mM KCl, 2mM DTT	100% D2O	100mM	6.5	1 atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
simulated annealing	the structures are based on a total of 1,289 NOE-derived distance constraints and 117 dihedral angle restraints.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.1	Brunger
2	refinement	X-PLOR	3.1	Brunger

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.