2OTK

Structure of Alzheimer Ab peptide in complex with an engineered binding protein

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	400 uM [U-100% 13C; U-100% 15N] Abeta peptide, 400 uM ZAb3 dimers, 20 mM Na-phosphate buffer	90% H2O/10% D2O	20 mM sodium phophate	7.2	ambient	298
2	3D_15N-separated_NOESY	400 uM [U-100% 13C; U-100% 15N] Abeta peptide, 400 uM ZAb3 dimers, 20 mM Na-phosphate buffer	90% H2O/10% D2O	20 mM sodium phophate	7.2	ambient	298
3	3D_13C-separated_NOESY	400 uM Abeta peptide, 400 uM [U-100% 13C; U-100% 15N] ZAb3 dimers, 20 mM Na-phosphate buffer	90% H2O/10% D2O	20 mM sodium phophate	7.2	ambient	298
4	3D_15N-separated_NOESY	400 uM Abeta peptide, 400 uM [U-100% 13C; U-100% 15N] ZAb3 dimers, 20 mM Na-phosphate buffer	90% H2O/10% D2O	20 mM sodium phophate	7.2	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	900
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
Ab initio simulated annealing		Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry,structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	24
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Intermolecular NOEs assigned based on 3D F1 (13C,15N)-filtered, F2 (13C or 15N)-edited NOESY experiments

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	Xplor-NIH	2.15.0	Kuszewski et al
2	data analysis	CcpNmr Analysis	1.10	Varken et al
3	processing	NMRPipe	2.3	DeLaglio
4	refinement	Xplor-NIH	2.15.0	Kuszewski et al