1XSA | pdb_00001xsa

Structure of the nudix enzyme AP4A hydrolase from homo sapiens (E63A mutant)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	C HSQC-NOESY	1.0mM human AP4A hydrolase	20mM MgCl2, 20mM imidazole, pH 6.5, 90% H2O 10% D2O, 10mM DTT, 1mM EDTA	51mM	6.5	ambient	293
2	3D_15N-separated_NOESY	1.0mM human AP4A hydrolase	20mM MgCl2, 20mM imidazole, pH 6.5, 90% H2O 10% D2O, 10mM DTT, 1mM EDTA	51mM	6.5	ambient	293
3	C HSQC-NOESY	1.0mM human AP4A hydrolase	20mM MgCl2, 20mM imidazole, pH 6.5, 100% D2O, 10mM DTT, 1mM EDTA	51mM	6.5	ambient	293
4	3D_15N-separated_NOESY	1.0mM human AP4A hydrolase	20mM MgCl2, 20mM imidazole, pH 6.5, 100% D2O, 10mM DTT, 1mM EDTA	51mM	6.5	ambient	293
5	C noesy-HSQC (aromatic region)	1.0mM human AP4A hydrolase	20mM MgCl2, 20mM imidazole, pH 6.5, 100% D2O, 10mM DTT, 1mM EDTA	51mM	6.5	ambient	293

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

NMR Refinement
Method	Details	Software
CANDID with talos for NOE assignments. xplor-NIH with RAMA pot. Further Refine against CACB shifts		CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	33
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Residues 1 and 2 are changed from GP to Alanine in the calculations. These are non native from precission cleavage site and are unstructured.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	1.0.7	P. Guntert
2	refinement	XPLOR-NIH	2.9.1

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.