1T2R

Structural basis for 3' end recognition of nucleic acids by the Drosophila Argonaute 2 PAZ domain

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	TRIPLE RESONANCE	0.2-1.0 MM 15N OR 15N,13C-LABELED PROTEIN, 0.1-2.5 MM UNLABELED DNA, 50 MM SODIUM PHOSPHATE BUFFER, 0.2 MM DTT			6.8	1 atm	295
2	NOESY	0.2-1.0 MM 15N OR 15N,13C-LABELED PROTEIN, 0.1-2.5 MM UNLABELED DNA, 50 MM SODIUM PHOSPHATE BUFFER, 0.2 MM DTT			6.8	1 atm	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DRX	600
3	Bruker	DRX	900

NMR Refinement
Method	Details	Software
molecular dynamics simulated annealing	THE EXPERIMENTALLY DETERMINED DISTANCE RESTRAINTS WERE APPLIED IN A MIXED TORSION AND CARTESIA DY NAMICS SIMULATED ANNEALING PROTOCOL. THE FINAL STRUCTURE ENSEMBLE WAS REFINED IN A SHELL OF WATER MOLECULES.	ARIA1.2, CNS1.1

NMR Ensemble Information
Conformer Selection Criteria	lowest energies
Conformers Calculated Total Number	150
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	ARIA1.2, CNS1.1		NILGES, BRUNGER ET AL.
2	structure solution	NMRView
3	structure solution	ARIA/CNS