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AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHERICHIA COLI, NMR, 14 STRUCTURES
SOLUTION NMR
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AMX500
500
2
Bruker
AMX600
600
NMR Refinement
Method
Details
Software
simulated annealing
THE 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 3.832
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
30
Conformers Submitted Total Number
14
Additional NMR Experimental Information
Details
THE 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)