Experiment: 9P2Q

Solution NMR Structure of the Novel CH Zinc Finger from Makorin-3

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	1.9 mM MKRN3-CH, 2.3 mM Zn, 1 mM DSS, 10 % [U-2H] D2O, 90 % H2O	90% H2O/10% D2O	1.9 mM	6.0	1 atm	280	Bruker AVANCE NEO 800
2	2D 1H-1H NOESY	1.9 mM MKRN3-CH, 2.3 mM Zn, 1 mM DSS, 10 % [U-2H] D2O, 90 % H2O	90% H2O/10% D2O	1.9 mM	6.0	1 atm	280	Bruker AVANCE NEO 800
3	2D 1H-1H TOCSY	2.2 mM ZFHX3-CH, 2.5 mM Zn, 1 mM DSS, 100 % [U-2H] D2O	100% D2O	2.2 mM	6.2	1 atm	280	Varian INOVA 600
4	2D 1H-1H NOESY	2.2 mM ZFHX3-CH, 2.5 mM Zn, 1 mM DSS, 100 % [U-2H] D2O	100% D2O	2.2 mM	6.2	1 atm	280	Varian INOVA 600
5	2D 1H-15N HSQC	1.9 mM MKRN3-CH, 2.3 mM Zn, 1 mM DSS, 10 % [U-2H] D2O, 90 % H2O	90% H2O/10% D2O	1.9 mM	6.0	1 atm	298	Varian INOVA 600
6	2D 1H-13C HSQC	1.9 mM ZFHX3-CH, 2.3 mM Zn, 1 mM DSS, 100 % [U-2H] D2O	100% D2O	2.2 mM	6.2	1 atm	280	Varian INOVA 600
7	2D 1H-1H TOCSY	1.9 mM MKRN3-CH, 2.3 mM Zn, 1 mM DSS, 10 % [U-2H] D2O, 90 % H2O	90% H2O/10% D2O	1.9 mM	10.8	1 atm	280	Bruker AVANCE NEO 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Bruker	AVANCE NEO	800
3	Bruker	AVANCE NEO	600

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing	Used for initial structure calculation and refinement. Structures are based on 268 NOE restraints, 55 dihedral restraints, 10 (x2) hydrogen bond restraints, 8 restraints to the zinc ion, and 9 restraints between the identified zinc ligands.	X-PLOR NIH
na	Used for finishing structure refinement steps and water refinement.	ARIA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CcpNmr Analysis		CCPN
2	refinement	ARIA		Linge, O'Donoghue and Nilges
3	data analysis	PSVS		Bhattacharya and Montelione
4	geometry optimization	TALOS		Cornilescu, Delaglio and Bax
5	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
7	peak picking	CcpNmr Analysis		CCPN