1IIO

NMR-Based Structure of the Conserved Protein MTH865 from the Archea Methanobacterium thermoautotrophicum


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
13D_15N-separated_NOESY0.5mM MTH865 U-15N; 50mM PO4 buffer, 50mM NaCl, 5mM DTT, 3mM NaN390% H2O/10% D2O50mM NaCl6.51ambient303
24D_13C/15N-separated_NOESY0.5mM MTH865 U-15N,13C; 50mM PO4 buffer, 50mM NaCl, 5mM DTT, 3mM NaN390% H2O/10% D2O50mM NaCl6.51ambient303
32D_NOESY0.5mM MTH865 U-15N,10%-13C; 50mM PO4 buffer, 50mM NaCl, 5mM DTT, 3mM NaN399% D2O50mM NaCl6.51ambient303
43D_13C-separated_methyl-methyl_NOESY0.5mM MTH865 U-15N,13C; 50mM PO4 buffer, 50mM NaCl, 5mM DTT, 3mM NaN390% H2O/10% D2O50mM NaCl6.51ambient298
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1VarianUNITY500
2VarianINOVA800
3VarianINOVA600
NMR Refinement
MethodDetailsSoftware
molecular dynamics, simulated annealing1492 UNAMBIGUOUS AND 544 AMBIGUOUS ARIA-DERIVED NOE RESTRAINTS (BASED ON 17 ITERATIONS) WERE USED FOR THE STRUCTURE CALCULATION AND REFINEMENT. 50 PAIRS OF PHI AND PSI DIHEDRAL ANGLE AND 26 PAIRS OF HYDROGEN-BOND RESTRAINTS WERE ALSO INCLUDED IN THE CALCULATIONS. DIHEDRAL ANGLE RESTRAINTS WERE CALCULATED USING TALOS, WHILE HYDROGEN BOND RESTRAINTS WERE DERIVED FROM A 15/1H-HSQC H2O-D2O EXCHANGE STUDY. THE STRUCTURE ENSEMBLE INCLUDES THREE ADDITIONAL RESIDUES AT THE N-TERMINUS (GLY-SER-HIS), RESULTING FROM THE PROTEOLYTIC CLEAVAGE OF A HIS6 AFFINITY TAG. RESIDUE NUMBERING BEGINS WITH GLY-3 AND ENDS WITH LEU81VNMR
NMR Ensemble Information
Conformer Selection Criteriastructures with the lowest energy
Conformers Calculated Total Number50
Conformers Submitted Total Number25
Representative Model1 (lowest energy)
Additional NMR Experimental Information
DetailsThe backbone and sidechain chemical shifts were assigned manually using standard 3D heternuclear techniques.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1collectionVNMR6.1bVarian, Inc.
2processingFelix95.0 and 2000Molecular Simulations, Inc.
3data analysisFelix95.0 and 2000Molecular Simulations, Inc.
4structure solutionARIA/CNS1.0Nilges, M. (ARIA); Brunger, A. (CNS)
5refinementARIA/CNS1.0Nilges, M. (ARIA); Brunger, A. (CNS)
6data analysisTALOS1.0Cornilescu, F., Delaglio, F., Bax, A.