1PUN | pdb_00001pun

Solution Structure of the MutT Pyrophosphohydrolase Complexed with Mg(2+) and 8-oxo-dGMP, a Tightly-bound Product

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
2	2D NOESY	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
3	2D TOCSY	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
4	3D_13C-separated_NOESY	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
5	12C/13C-filtered-NOESY-HSQC	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
6	15N-1H IPAP-HSQC	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O, 10% D2O. 3% (w/v) bicelles (C8E5/octanol ratio 0.87)	21 mM NaCl	7.5	ambient	295
7	HNCA	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295
8	NHCACB	1MM MUTT, 1.3MM 8-OXO-DGMP, 15MM MGCL2, 4MM D11-TRIS-HCL, PH 7.5, 21MM NACL, 0.34MM NAN3.	90% H2O/10% D2O	21 mM NaCl	7.5	ambient	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	600

NMR Refinement
Method	Details	Software
simulated annealing torsion angle dynamics	the structures are based on 1746 NOE-derived distance constraints, 186 dihedral angle restraints derived from TALOS, 82 distance restraints from hydrogen bonds and 53 N-H residual dipolar couplings.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Sample condition 2 was used to measure residual dipolar couplings.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	2.1	F. Delaglio
2	structure solution	CNS	1.1	A. Brunger et al.
3	data analysis	TALOS	1999.019.15.47	Cornilecu, Delaglio and Bax
4	refinement	CNS	1.1	A. Brunger et al.