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NMR STRUCTURES OF CHLOROPLAST THIOREDOXIN M CH2 FROM THE GREEN ALGA CHLAMYDOMONAS REINHARDTII
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
3D_13C-SEPARATED_NOESY
2-3 MM THIOREDOXIN M (OXIDIZED) U-15N; 100 MM POTASSIUM PHOSPHATE BUFFER PH
5.8; 90% H2O 10% D20
100 mM POTASSIUM PHOSPHATE
5.8
AMBIENT
311
2
3D-SEPARATED-TOCSY
2-3 MM THIOREDOXIN M (OXIDIZED) U-15N; 100 MM POTASSIUM PHOSPHATE BUFFER PH
5.8; 90% H2O 10% D20
100 mM POTASSIUM PHOSPHATE
5.8
AMBIENT
311
3
2D NOESY
2-3 MM THIOREDOXIN M (OXIDIZED);100 MM POTASSIUM PHOSPHATE BUFFER PH 5.8; 90%
H2O 10% D20
100 mM POTASSIUM PHOSPHATE
5.8
AMBIENT
311
4
2D NOESY
2-3 MM THIOREDOXIN M (OXIDIZED);100 MM POTASSIUM PHOSPHATE BUFFER PH 5.8; 100%
D20
100 mM POTASSIUM PHOSPHATE
5.8
AMBIENT
311
5
TOCSY
2-3 MM THIOREDOXIN M (OXIDIZED);100 MM POTASSIUM PHOSPHATE BUFFER PH 5.8; 90%
H2O 10% D20
100 mM POTASSIUM PHOSPHATE
5.8
AMBIENT
311
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AMX
600
2
Bruker
DRX
500
NMR Refinement
Method
Details
Software
SIMULATED ANNEALING STARTING FROM A RANDOM ARRAY OF ATOMS. HIGH TEMPERATURE
SIMULATED ANNEALING. RESTRAINED MOLECULAR DYNAMIC AT ROOM TEMPERATURE.
THE STRUCTURES ARE BASED ON 1372 TOTAL INTERPROTON DISTANCE RESTRAINTS, 1348
ARE DERIVED FROM NOE DATA AND 44 DERIVED FROM SLOW DEUTERIUM EXCHANGE
EXPERIMENTS OF HYDROGEN BONDED AMIDE PROTONS IN REGULAR SECONDARY STRUCTURE
MOTIFS. THE RESTRAINT SET INCLUDES 102 DIHEDRAL RESTRAINTS, 66 PHI, 34 KHI1, 2
KHI2. FINAL STRUCTURES ARE REFINED AGAINST THE FULL DESCRIPTION OF AMBER4
FORCE FIELD WITH REDUCED CHARGES FOR FORMALLY CHARGED GROUPS AS ARG, LYS, ASP,
GLU RESIDUES.
XwinNMR
NMR Ensemble Information
Conformer Selection Criteria
STRUCTURES WITH ACCEPTABLE COVALENT GEOMETRY. STRUCTURES WITH FAVORABLE NON-
BOND ENERGY. STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS. STRUCTURES WITH
THE LOWEST ENERGY.
Conformers Calculated Total Number
50
Conformers Submitted Total Number
28
Representative Model
16 (closest to the average)
Additional NMR Experimental Information
Details
THE STRUCTURE WAS DETERMINED USING 2D HOMONUCLEAR IN H20 AND 100% D2O AND 3D-
15N SEPARATED NOESY AND TOCSY DATA.