2EZB

AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHERICHIA COLI, NMR, 14 STRUCTURES


SOLUTION NMR
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAMX500500
2BrukerAMX600600
NMR Refinement
MethodDetailsSoftware
simulated annealingTHE STRUCTURES WERE CALCULATED USING THE SIMULATED ANNEALING PROTOCOL OF NILGES ET AL. (1988) FEBS LETT. 229, 129-136 USING THE PROGRAM X-PLOR 3.1 (BRUNGER) MODIFIED TO INCORPORATE COUPLING CONSTANT (GARRETT ET AL. (1984) J. MAGN. RESON. SERIES B 104, 99-103) AND CARBON CHEMICAL SHIFT (KUSZEWSKI ET AL. (1995) J. MAGN. RESON. SERIES B 106, 92-96) RESTRAINTS, AND T1/T2 RESTRAINTS (TJANDRA ET AL. NATURE STRUCT. BIOL. 4, 443-449, 1997). IN THIS ENTRY THE LAST COLUMN REPRESENTS THE AVERAGE RMS DIFFERENCE BETWEEN THE INDIVIDUAL SIMULATED ANNEALING STRUCTURES AND THE MEAN COORDINATE POSITIONS. THE LAST COLUMN IN THE INDIVIDUAL SA STRUCTURES HAS NO MEANING. BEST FITTING TO GENERATE THE AVERAGE STRUCTURE IS WITH RESPECT TO RESIDUES 1 - 246 (RESIDUES 250 - 259 ARE DISORDERED IN SOLUTION). THE DIFFUSION AXIS IS REPRESENTED BY A LINE CONNECTING THE FOLLOWING POINTS: MODEL 1 P1 99.496 -5.388 4.259 P2 100.996 -5.522 4.494 MODEL 2 P1 98.788 -8.987 5.732 P2 100.276 -9.158 6.005 MODEL 3 P1 99.434 -4.307 5.171 P2 100.913 -4.485 5.479 MODEL 4 P1 98.451 -9.432 11.021 P2 99.937 -9.664 11.263 MODEL 5 P1 98.767 -8.960 4.411 P2 100.260 -9.156 4.635 MODEL 6 P1 99.248 -6.533 6.790 P2 100.732 -6.751 7.054 MODEL 7 P1 98.875 -10.180 3.464 P2 100.357 -10.334 3.776 MODEL 8 P1 97.923 -10.162 13.940 P2 99.409 -10.421 14.154 MODEL 9 P1 99.582 -4.741 4.131 P2 101.088 -4.915 4.285 MODEL 10 P1 98.768 -9.128 7.223 P2 100.256 -9.280 7.504 MODEL 11 P1 99.573 -2.947 5.813 P2 101.060 -3.111 6.100 MODEL 12 P1 99.760 -1.351 2.531 P2 101.255 -1.535 2.751 MODEL 13 P1 99.373 -4.422 5.924 P2 100.867 -4.570 6.179 MODEL 14 P1 99.181 -5.648 3.682 P2 100.678 -5.875 3.832X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number30
Conformers Submitted Total Number14
Additional NMR Experimental Information
DetailsTHE 3D STRUCTURE WAS SOLVED BY MULTI-DIMENSIONAL HETERONUCLEAR NMR AND IS BASED ON 4639 EXPERIMENTAL NMR RESTRAINTS: 117 T1/T2 RESTRAINTS; 952 SEQUENTIAL (|I- J|=1), 809 MEDIUM RANGE (1 < |I-J| <=5) AND 586 LONG RANGE (|I-J| >5) INTERRESIDUES AND 471 INTRARESIDUE APPROXIMATE INTERPROTON DISTANCE RESTRAINTS; 230 DISTANCES FOR 115 BACKBONE HYDROGEN BONDS; 543 TORSION ANGLE RESTRAINTS; 163 THREE-BOND HN-HA COUPLING CONSTANT RESTRAINTS; AND 498 (257 CALPHA AND 241 CBETA) 13C SHIFT. RESTRAINTS. (NUMBERS OF RESIDUES 1 - 259)
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementX-PLOR3.1BRUNGER
2structure solutionX-PLOR (SEE ABOVE)ABOVE)