1VMC

STROMA CELL-DERIVED FACTOR-1ALPHA (SDF-1ALPHA)


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
1(1) TRIPLE RESONANCE FOR ASSIGNMENT OF PROTEIN 50 mM SODIUM PHOSPHATE5.5308.00
2(2) QUANTITATIVE J CORRELATION FOR COUPLING CONSTANTS 50 mM SODIUM PHOSPHATE5.5308.00
3(3) 3D 50 mM SODIUM PHOSPHATE5.5308.00
44D HETERONUCLEAR SEPARATED NOE EXPTS 50 mM SODIUM PHOSPHATE5.5308.00
5(4) IPAP HSQC EXPT FOR DIPOLAR MEASURED IN 5% DMPC:DHPC (3:1) BICELLES 50 mM SODIUM PHOSPHATE5.5308.00
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerDMX500500
2BrukerDMX600600
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); THE NON-BONDED INTERACTIONS ARE REPRESENTED BY A QUARTIC VAN DER WAALS REPULSION TERM, TORSION ANGLE AND HYDROGEN BONDING DATABASE POTENTIALS OF MEAN FORCE, AND A RADIUS OF GYRATION RESTRAINT. IN THIS ENTRY THE LAST COLUMN REPRESENTS THE AVERAGE RMS DIFFERENCE BETWEEN THE INDIVIDUAL SIMULATED ANNEALING STRUCTURES BEST-FITTED TO RESIDUES 8-65. ONLY RESIDUES 8-68 ARE SHOWN SINCE RESIDUES 1-7 AT THE C-TERMINUS ARE DISORDERED IN SOLUTION EXPERIMENTAL RESTRAINTS: 562 INTERPROTON DISTANCE RESTRAINTS: (173 INTRARESIDUE; 174 SEQUENTIAL, 94 MEDIUM-RANGE, AND 121 LONG-RANGE INTERRESIDUE; 58 DISTANCE RESTRAINTS FOR 29 BACKBONE H-BONDS 202 TORSION ANGLE RESTRAINTS (69 PHI, 55 PSI, 78 CHI) 189 CALPHA/CBETA CHEMICAL SHIFT RESTRAINTS 37 3JHN-HA COUPLING CONSTANT RESTRAINTS 35 RESIDUAL NH DIPOLAR COUPLING RESTRAINTS 135 CA/CB 13C SHIFTS DIPOLAR COUPLING R-FACTOR: 5.5% (DA = -9.7Hz, RHOMBICITY = 0.46)XPLOR-NIH
NMR Ensemble Information
Conformer Selection CriteriaRESTRAINED REGULARIZED MEAN STRUCTURE
Conformers Calculated Total Number100
Conformers Submitted Total Number1
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementXPLOR-NIH(HTTP://NMR.CIT.NIH.GOV/XPLOR_NIH)C.D.SCHWIETERS,J.J.KUSZEWSKI,N.TJANDRA,G.M.CLORE
2structure solutionXPLOR-NIH