RCSB PDB

139717 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

1JOO

Averaged structure for unligated Staphylococcal nuclease-H124L

SOLUTION NMR Experimental Data

Experimental Details

Sample Conditions

	Sample Contents	3.5-5 mM Nuclease-H124L U-50% 2H; 300 mM KCl; D2O
	Solvent	D2O
	Ionic Strength	300 nM KCl
	pH	5.5
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	E-COSY, and others, 2D NOESY

	Sample Contents	3.5-5 mM Nuclease-H124L U-95% 15N; 300 mM KCl; H2O
	Solvent	H2O
	Ionic Strength	300 nM KCl
	pH	5.1
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	HMQC-J, 3D 1H-15N NOESY-HMQC

	Sample Contents	3.5-5 mM Nuclease-H124L; 300 mM KCl; D2O
	Solvent	D2O
	Ionic Strength	300 nM KCl
	pH	5.5
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	DQF-COSY

	Sample Contents	3.5-5 mM Nuclease-H124L U-50% 2H; 300 mM KCl; H2O
	Solvent	H2O
	Ionic Strength	300 nM KCl
	pH	5.1
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	2D NOESY

	Sample Contents	3.5-5 mM Nuclease-H124L U-98% 13C; 300 mM KCl; H2O
	Solvent	H2O
	Ionic Strength	300 nM KCl
	pH	5.1
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	2D 1H-13C HMQC

	Sample Contents	3.5-5 mM Nuclease-H124L U-98% 13C U-99% 15N; 300 mM KCl; H2O
	Solvent	H2O
	Ionic Strength	300 nM KCl
	pH	5.1
	Pressure	ambient
	Temperature (K)	318
	Experiment(s):	HNCO, 3D HNCA

Spectrometer Information
Manufacturer	Model	Field Strength
Bruker	AM	500.0
Bruker	AM	600.0

NMR Refinement
Method	Distance, hydrogen bond and torsion angle constraints
Details	2176 constraints were used to calculate the structure

NMR Ensemble Information
Conformers Submitted Total Number	1

Representative Model Choice Rationale
1	minimized average structure

Computation: NMR Software
#	Classification	Software Name	Author
1	processing	FELIX	Biosym Technologies Inc
2	structure solution version: 3.1	X-PLOR	Brunger
3	structure solution version: 2.3	INSIGHTii	Biosym Technologies Inc
4	structure solution	HBPLUS	McDonald and Thornton
5	refinement version: 3.1	X-PLOR	Brunger

The RCSB PDB is funded by a grant (DBI-1338415) from the National Science Foundation, the National Institutes of Health, and the US Department of Energy.