1SS2

Solution structure of the second complement control protein (CCP) module of the GABA(B)R1a receptor, Pro-119 cis conformer

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	1mM GABA(B)R1a 2nd CCP module U-15N,13C; 20 mM deuterated sodium acetate, pH 4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4	ambient	310
2	3D_15N-separated_NOESY	1mM GABA(B)R1a 2nd CCP module U-15N,13C; 20 mM deuterated sodium acetate, pH 4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4	ambient	310
3	HNHA	1mM GABA(B)R1a 2nd CCP module U-15N,13C; 20 mM deuterated sodium acetate, pH 4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Bruker	DRX	800

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing, molecular dynamics	1268 unique restraints, 23 dihedral angles (HNHA), 11 hydrogen bonds	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number	120
Conformers Submitted Total Number	24
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1	Varian
2	processing	Azara	2.6	Boucher, W.
3	data analysis	ANSIG	3.3	Kraulis, P.
4	structure solution	CNS	1.0	Brunger
5	refinement	CNS	1.0	Brunger

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.