5Y22

NMR-Based Model of the 22 Amino Acid Peptide in Polysialyltransferase Domain (PSTD) of the Polysialyltransferase ST8Sia IV

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.0 mM 22AA-PSTD peptide, 40 % trifluoroethanol-d3	trifluoroethanol/water	0 mM	6.7	1 atm	298	Agilent DD2 800
2	2D 1H-13C HSQC	1.0 mM 22AA-PSTD peptide, 40 % trifluoroethanol-d3	trifluoroethanol/water	0 mM	6.7	1 atm	298	Agilent DD2 800
3	2D 1H-1H NOESY	1.0 mM 22AA-PSTD peptide, 40 % trifluoroethanol-d3	trifluoroethanol/water	0 mM	6.7	1 atm	298	Agilent DD2 800
4	2D 1H-1H TOCSY	1.0 mM 22AA-PSTD peptide, 40 % trifluoroethanol-d3	trifluoroethanol/water	0 mM	6.7	1 atm	298	Agilent DD2 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Agilent	DD2	800

NMR Refinement
Method	Details	Software
simulated annealing		NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	8.9	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	data analysis	Analysis	2.4	CCPN
3	structure calculation	ARIA	2.3.1	Linge, O'Donoghue and Nilges
4	refinement	CNS	1.2.1	Brunger, Adams, Clore, Gros, Nilges and Read

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.