2LUU

NMR solution structure of midkine-b, mdkb

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	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298
2	2D 1H-13C HSQC	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298
3	3D HN(CO)CA	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298
4	3D HNCA	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298
5	3D MQ-(H)CCH-TOCSY	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298
6	4D timeshared 13C/ 15N edited NOESY	10 mM potassium phosphate, 0.1 mM sodium azide, 100 mM sodium chloride, 1 mM EDTA, 0.8 mM [U-100% 13C; U-100% 15N] protein	95% H2O/5% D2O		6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
simulated annealing	NOE distance refinement using CYANA 2.1. Hydrogen bond restraints using H-D exchange experiment	CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
2	chemical shift assignment	NMRspy		Zheng Yu and Yang Daiwen
3	geometry optimization	TALOS		Cornilescu, Delaglio and Bax
4	processing	NMRPipe	1	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax