2HYN

Complete ensemble of NMR structures of unphosphorylated human phospholamban pentamer

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	TROSY-HNCA, HNCACB, HNCACO, MEASUREMENT OF 1H-15N, 13C'- 13CA, AND 13C'-15N RDCS USING 3D HNCO BASED EXPERIMENTS, HCCONH, CCONH, 15N-EDITED NOESY, 13C-EDITED NOESY, 13C- HSQC FOR METHYL STEREOSPECIFIC ASSIGNMENT, DOUBLE 13C- FILTERED, 15N-EDITED NOESY, 3D 15N-EDITED NOESY, 2D SPIN-ECHO DIFFERENCE EXPERIMENTS FOR MEASURING 3-BOND J(NCG) AND J(CCG) COUPLINGS	0.2 MM PHOSPHOLAMBAN PENTAMER, U-15N, 13C, 85% 2H, 25 MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM DPC, 95% H2O, 5% D2O;0.2 MM PHOSPHOLAMBAN PENTAMER, U-15N, 13C, 85% 2H, 25 MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM DPC, 4% STRETCHED POLYACRYLAMIDE GEL,95% H2O, 5% D2O;0.2 MM PHOSPHOLAMBAN PENTAMER, U-15N,13C, 25 MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM 2H-DPC, 95% H2O, 5% D2O;0.2 MM PHOSPHOLAMBAN PENTAMER, 10% 13C-LABELED, 25 MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM DPC, 95% H2O, 5% D2O;0.2 MM PHOSPHOLAMBAN PENTAMER, 50% U-15N,13C AND 50% UNLABELED, 25MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM 2H-DPC, 95% H2O, 5% D2O;0.2 MM PHOSPHOLAMBAN PENTAMER, 50% U-15N, U-2H AND 50% UNLABELED,25MM SODIUM PHOSPHATE BUFFER, 50 MM BME, 200 MM 2H-DPC, 95% H2O, 5% D2O	95% H2O/5% D2O	25 mM SODIUM PHOSPHATE	6.0	AMBIENT	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Adavnce, DMX	500

NMR Refinement
Method	Details	Software
Complete SCS search, Energy-minimization	1. MONOMER STRUCTURE: DETERMINED WITH SIMULATED ANNEALING PROTOCOL THAT REFINES ALL INTRAMONOMER NOES, SIDECHAIN J-COUPLINGS, AND BACKBONE RDCS. 2. PENTAMER STRUCTURE: DETERMINED BY OUR COMPLETE SCS APPROACH. TRADITIONAL NMR PROTOCOLS FOR SYMMETRIC HOMO-OLIGOMERS (USED FOR STRUCTURES OF PDB ID 1ZLL) ARE BASED ON SIMULATED ANNEALING TECHNIQUES AND COULD GET TRAPPED IN LOCAL MINIMA. OUR COMPLETE SCS SEARCH APPROACH AVOIDS BIAS AND RETURNS ALL CONSISTENT, WELL-PACKED STRUCTURES TO WITHIN A USER-DEFINED SIMILARITY LEVEL. ENERGY-MINIMIZATION IS USED ONLY AT A LATER STAGE AFTER THE ENSEMBLE OF STRUCTURES THAT SATISFY THE DATA HAVE BEEN IDENTIFIED, HENCE ENSURING THAT NO CONSISTENT WELL-PACKED CONFORMATION IS MISSED.	Complete SCS search

NMR Ensemble Information
Conformer Selection Criteria	All calculated structures were submitted. Our method guarantees that the ensemble represents all structures that satisfy the data and have good vdW packing within a user-defined similarity level (chosen as 1 A).
Conformers Calculated Total Number	184
Conformers Submitted Total Number	184
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Complete SCS search	0	S. Potluri, A.K. Yan, B. R. Donald, C. Bailey-Kellogg
2	refinement	CNS	1.1	A.T.Brunger, P.D.Adams, G.M.Clore, W.L.DeLano,P.Gros, R.W.Grosse-Kunstleve, J.-S.Jiang,J.Kuszewski, M.Nilges, N.S.Pannu, R.J.Read,L.M.Rice, T.Simonson, G.L.Warren

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 R01GM157729.