2KT0

Solution structure of human stem cell transcription factor Nanog homeodomain fragment

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.7 mM [U-95% 13C; U-90% 15N] Nanog, 95% H2O, 5% D2O	95% H2O/5% D2O	250	7.0	AMBIENT	298
2	3D_13C-separated_NOESY	0.7 mM [U-95% 13C; U-90% 15N] Nanog, 95% H2O, 5% D2O	95% H2O/5% D2O	250	7.0	AMBIENT	298
3	3D_13C-separated_NOESY (AROMATIC)	0.7 mM [U-95% 13C; U-90% 15N] Nanog, 95% H2O, 5% D2O	95% H2O/5% D2O	250	7.0	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600

NMR Refinement
Method	Details	Software
MOLECULAR DYNAMICS IN EXPLICIT SOLVENT	AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT AND ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT. STRUCTURES ARE BASED ON A TOTAL OF 1766 NOE CONSTRAINTS ( 597 INTRA, 423 SEQUENTIAL, 224 MEDIUM and 522 LONG RANGE CONSTRAINTS) AND 197 PHI AND PSI DIHEDRAL ANGLE CONSTRAINTS.	CNS

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	ALL TRIPLE-RESONANCE AND NOESY SPECTRA WERE ACQUIRED USING A CRYOGENIC PROBE

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	1.21	Brunger A. T. et.al.