2OS6

Solution structure of LARG PDZ domain in complex with C-terminal octa-peptide of Plexin B1

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.8mM 15N, 13C-labeled LARG PDZ domain, 5mM EDTA, 1mM DTT, 7.6mM synthetic peptide	50mM phosphate buffer, 90% H2O, 10% D2O	50 mM phosphate buffer, 50mM NaCl	6.0	1 atm	293
2	3D_13C-separated_NOESY	0.8mM 15N, 13C-labeled LARG PDZ domain, 5mM EDTA, 1mM DTT, 7.6mM synthetic peptide	50mM phosphate buffer, 99.9% D2O	50 mM phosphate buffer, 50mM NaCl	6.0	1 atm	293
3	2D, 13C, 15N-filtered, 13C-edited NOESY	0.8mM 15N, 13C-labeled LARG PDZ domain, 5mM EDTA, 1mM DTT, 7.6mM synthetic peptide	50mM phosphate buffer, 99.9% D2O	50 mM phosphate buffer, 50mM NaCl	6.0	1 atm	293
4	DQF-COSY	0.8mM 15N, 13C-labeled LARG PDZ domain, 5mM EDTA, 1mM DTT, 7.6mM synthetic peptide	50mM phosphate buffer, 99.9% D2O	50 mM phosphate buffer, 50mM NaCl	6.0	1 atm	293
5	2D TOCSY	0.8mM 15N, 13C-labeled LARG PDZ domain, 5mM EDTA, 1mM DTT, 7.6mM synthetic peptide	50mM phosphate buffer, 99.9% D2O	50 mM phosphate buffer, 50mM NaCl	6.0	1 atm	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500
2	Bruker	DMX	600

NMR Refinement
Method	Details	Software
Distance geometry, simulated annealing, molecular dynamics, torsion angle dynamics	The complex structure is solved using a total of 1306 experimental restraints that include 1155 intramolecular NOEs, 90 dihedral angle restraints and 61 intermolecular NOEs derived from NMR spectroscopy	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	Cns 1.1	Brunger A. T. etall
2	processing	NMRPipe	Nmrpipe 2.2	F.Delaglio
3	data analysis	Sparky 3	Sparky 3	T.D.Goddard and D.G.Kneller
4	processing	Molmol 2k.2	Molmol 2k.2	Koradi
5	refinement	Csi 1.0	Csi 1.0	David S. Wishart

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.