2LKX

NMR structure of the homeodomain of Pitx2 in complex with a TAATCC DNA binding site

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
2	3D 1H-15N NOESY	1 mM [U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
3	2D 1H-13C HSQC aliphatic	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
4	2D 1H-13C HSQC aromatic	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
5	3D CBCA(CO)NH	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
6	3D C(CO)NH	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
7	3D HNCO	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
8	3D HNCA	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
9	3D HNCACB	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
10	3D H(CCO)NH	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
11	3D HCCH-TOCSY	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
12	3D 1H-13C NOESY aliphatic	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
13	3D 1H-13C NOESY aromatic	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295
14	3D HBHA(CO)NH	1 mM [U-99% 13C; U-99% 15N] pitx2 homeodomain, 1 mM DNA (5'-D(P*CP*TP*CP*TP*AP*AP*TP*CP*CP*CP*C)-3'), 1 mM DNA (5'-D(P*GP*GP*GP*GP*AP*TP*TP*AP*GP*AP*G)-3')	90% H2O/10% D2O		7.0	ambient	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	800
2	Varian	INOVA	600
3	Varian	INOVA	500

NMR Refinement
Method	Details	Software
molecular dynamics		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	30
Conformers Submitted Total Number	17
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
2	refinement	Amber		Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollm