1VKR

STRUCTURE OF IIB DOMAIN OF THE MANNITOL-SPECIFIC PERMEASE ENZYME II


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
11) TRIPLE RESONANCE FOR ASSIGNMENT OF PROTEIN 40 mM SODIUM PHOSPHATE7.1308.00
2(2) QUANTITATIVE J CORRELATION FOR COUPLING CONSTANTS 40 mM SODIUM PHOSPHATE7.1308.00
3(3) 3D, 4D HETERONUCLEAR SEPARATED NOE EXPTS 40 mM SODIUM PHOSPHATE7.1308.00
4(4) IPAP and COUPLED HSQC EXPERIMENTS FOR DIPOLAR COUPLINGS. DIPOLAR COUPLINGS WERE MEASURED IN PEG/HEXANOL 40 mM SODIUM PHOSPHATE7.1308.00
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerDMX500500
2BrukerDMX600600
3BrukerDRX600750
4BrukerDMC750800
5BrukerDRX800800
NMR Refinement
MethodDetailsSoftware
torsion angle dynamicsTHE TARGET FUNCTION COMPRISES TERMS FOR THE NOE-DERIVED INTERPROTON DISTANCE RESTRAINTS, TORSION ANGLE RESTRAINTS, 3JHN-HALPHA COUPLING CONSTANT RESTRAINTS, 13CALPHA/BETA CHEMICAL SHIFT RESTRAINTS, AND RESIDUAL DIPOLAR COUPLING RESTRAINTS (N-H, N-C' AND HN-C'); A QUARTIC VAN DER WAALS REPULSION TERM, TORSION ANGLE AND HYDROGEN BONDING DATABASE POTENTIALS OF MEAN FORCE, AND A RADIUS OF GYRATION RESTRAINTS. IN THIS ENTRY THE LAST COLUMN REPRESENTS THE AVERAGE RMS DIFFERENCE BETWEEN THE INDIVIDUAL SIMULATED BEST-FITTED TO RESIDUES 375-471. ONLY RESIDUES 375-471 ARE SHOWN SINCE RESIDUES 365-374 AND 472-489 AT THE N- AND C-TERMINI RESPECTIVELY, ARE DISORDERED IN SOLUTION. EXPERIMENTAL RESTRAINTS: 1444 INTERPROTON DISTANCE RESTRAINTS: (90 INTRARESIDUE; 419 SEQUENTIAL, 347 MEDIUM-RANGE, AND 517 LONG-RANGE INTERRESIDUE; 50 SEQUENTIAL/MEDIUM-RANGE AMBIGUOUS; 21 LONG-RANGE AMBIGUOUS 110 DISTANCE RESTRAINTS FOR 55 BACKBONE H-BONDS 214 TORSION ANGLE RESTRAINTS (90 PHI, 94 PSI, 68 CHI) 189 CALPHA/CBETA CHEMICAL SHIFT RESTRAINTS 70 3JHN-HA COUPLING CONSTANT RESTRAINTS 200 RESIDUAL DIPOLAR COUPLING RESTRAINTS (74 N-H, 62 N-C', 64 HN-C') DIPOLAR COUPLING R-FACTORS: N-H 2.8% N-C' 14.9% HN-C' 13.5%X-PLOR NIH
NMR Ensemble Information
Conformer Selection CriteriaREGULARIZED MEAN STRUCTURE
Conformers Calculated Total Number80
Conformers Submitted Total Number1
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementX-PLOR NIH(HTTP://NMR.CIT.NIH.GOV/XPLOR_NIH)SCHWIETERS, KUSZEWSKI, TJANDRA, CLORE