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