1A57

THE THREE-DIMENSIONAL STRUCTURE OF A HELIX-LESS VARIANT OF INTESTINAL FATTY ACID BINDING PROTEIN, NMR, 20 STRUCTURES


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
13-D 13C-RESOLVED NOESY 7.2298
23-D 15N-RESOLVED NOESY 7.2298
32-D 1H-HOMONUCLEAR NOESY 7.2298
42-D 13C-EDITED NOESY 7.2298
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1VarianUNITY500
NMR Refinement
MethodDetailsSoftware
DISTANCE GEOMETRY WITH SIMULATED ANNEALING REFINEMENTDISTANCE GEOMETRY WAS PERFORMED USING 5% PAIRWISE METRIZATION AND A GAUSSIAN TRIAL DISTRIBUTION FOR THE SELECTION OF DISTANCES USING THE PROGRAM DISTGEOM, A COMPONENT OF THE TINKER MOLECULAR MODELING PACKAGE. EMBEDDED STRUCTURES WERE REFINED VERSUS A PENALTY FUNCTION BASED SOLELY ON THE EXPERIMENTAL RESTRAINTS AND LOCAL COVALENT GEOMETRY (BOND LENGTHS, ANGLES, CHIRALITY); NO ENERGY-BASED TERMS WERE INCLUDED. DETAILS OF THE CALCULATIONS AND STRUCTURAL STATISTICS ARE GIVEN IN THE PAPER CITED ON THE JRNL RECORDS ABOVE. THE LOOP FROM RESIDUES 8 - 20 IS ENTIRELY UNRESTRAINED. THIS REGION CONTAINS THE SITE OF THE DELETED HELICES OF I-FABP. CARE SHOULD BE TAKEN WHEN ANALYZING STATISTICS ON THIS MOLECULE AS THIS UNRESTRAINED LOOP WILL ABNORMALLY SKEW ANY RESULTS.Tinker
NMR Ensemble Information
Conformer Selection CriteriaFINAL PENALTY FUNCTION VALUES GREATER THAN 10.0 OR GREATER THAN TWO STANDARD DEVIATIONS FROM THE MEAN WERE OMITTED
Conformers Calculated Total Number23
Conformers Submitted Total Number20
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementTinkerPONDER
2structure solutionTinker