| THE 3D STRUCTURE OF REDUCED HUMAN THIOREDOXIN IN SOLUTION
BY NMR IS BASED ON 2933 EXPERIMENTAL RESTRAINTS COMPRISING:
2571 STRUCTURE USEFUL INTERPROTON DISTANCE RESTRAINTS; 28
RESTRAINTS FOR 14 H-BONDS INVOLVING 6 TIGHTLY BOUND WATER
MOLECULES; 60 RESTRAINTS FOR 30 BACKBONE HYDROGEN BONDS
INVOLVING SLOWLY EXCHANGING AMIDE PROTONS; 273 TORSION
ANGLE RESTRAINTS (104 PHI, 71 PSI, 78 CHI1 AND 20 CHI2);
AND 89 HN-HALPHA THREE-BOND COUPLING CONSTANTS. A
COMPLETE LIST OF EXPERIMENTAL RESTRAINTS AND 1H, 13C AND
15N ASSIGNMENTS HAVE BEEN DEPOSITED WITH THE PROTEIN 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 THE REFERENCE.
THIS ENTRY CONTAINS THE RESTRAINED MINIMIZED AVERAGE
STRUCTURE (SA)R. THIS IS OBTAINED BY FIRST AVERAGING THE
COORDINATES OF THE INDIVIDUAL 40 DYNAMICAL SIMULATED
ANNEALING SA STRUCTURES BEST FITTED TO RESIDUES 1 - 105 AND
SUBJECTING THE RESULTING COORDINATES TO RESTRAINED
MINIMIZATION. THE 40 INDIVIDUAL STRUCTURES ARE PRESENTED
IN PROTEIN DATA BANK ENTRY 1TRV.
COLUMNS 61 - 65 OF THE COORDINATE RECORDS (THE B VALUE
FIELD IN X-RAY STRUCTURES) IN THE MINIMIZED STRUCTURE
(ENTRY 1TRW) GIVE THE AVERAGE RMS DIFFERENCE BETWEEN THE
INDIVIDUAL SA STRUCTURES AND THE MEAN STRUCTURE. THE
NUMBERS IN THIS FIELD OF THE INDIVIDUAL STRUCTURES (ENTRY
1TRV) HAVE NO MEANING. | |
