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THE 3D SOLUTION STRUCTURE OF THE DNA BINDING DOMAIN OF MU
TRANSPOSASE (MUA76, RESIDUES 1 - 76) WAS SOLVED BY
MULTIDIMENSIONAL HETERONUCLEAR-EDITED NMR EXPERIMENTS AND
IS BASED ON 1320 EXPERIMENTAL RESTRAINTS COMPRISING THE
FOLLOWING: (A) 1192 APPROXIMATE INTERPROTON DISTANCE
RESTRAINTS (308 SEQUENTIAL, 266 SHORT RANGE 1 , |I-J| <=5,
323 LONG RANGE |I-J|>5, AND 295 INTRARESIDUE (B) 18
DISTANCE RESTRAINTS FOR 9 BACKBONE HYDROGEN BONDS (C) 36
HN-CAH COUPLING CONSTANT RESTRAINTS (D) 74 TORSION ANGLE
RESTRAINTS (40 PHI, 23 CHI1 AND 11 CHI2).
A COMPLETE LIST OF EXPERIMENTAL RESTRAINTS HAVE BEEN
DEPOSITED WITH THE BROOKHAVEN DATA BANK.
THE STRUCTURES ARE CALCULATED USING THE HYBRID METRIC
MATRIX DISTANCE GEOMETRY-DYNAMICAL SIMULATED ANNEALING
METHOD DESCRIBED BY: NILGES, M., CLORE, G.M. &
GRONENBORN, A.M. (1988) FEBS LETT 229, 317 - 324 ALL
STRUCTURAL STATISTICS ARE GIVEN IN REF. 1.
THIS STRUCTURE IS THE RESTRAINED MINIMIZED AVERAGE
STRUCTURE: (SA)R. THIS IS OBTAINED BY FIRST AVERAGING
THE COORDINATES OF THE INDIVIDUAL 33 DYNAMICAL SIMULATED
ANNEALING (SA) STRUCTURES BEST FITTED TO RESIDUES 3 - 36
AND 45 - 65 AND SUBJECTING THE RESULTING COORDINATES TO
RESTRAINED MINIMIZATION. THE LAST NUMBER COLUMN IN THIS
SET OF COORDINATES (THE B-FACTOR COLUMN IN X-RAY
STRUCTURES) GIVES THE AVERAGE RMS DIFFERENCE BETWEEN THE
INDIVIDUAL SA STRUCTURES AND THE MEAN STRUCTURE. THE
NUMBERS IN THE LAST COLUMN OF THE INDIVIDUAL STRUCTURES
HAVE NO MEANING. RESIDUES 1 - 2, 66 - 76, AND 37 - 44 ARE
DISORDERED IN SOLUTION. THE 33 INDIVIDUAL STRUCTURES CAN
BE FOUND IN PDB ENTRY 1TNT. |
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