Resolution: 1.9→51.7 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.944 / SU B: 7.909 / SU ML: 0.117 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / ESU R: 0.147 / ESU R Free: 0.137 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS 2. DENSITY IS WEAK FOR RESIDUES 99-100. NCS WAS USED TO MODEL THIS REGION. (3) RESIDUES 147-148 WERE OMITTED FROM ALL CHAINS DUE TO POOR ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS 2. DENSITY IS WEAK FOR RESIDUES 99-100. NCS WAS USED TO MODEL THIS REGION. (3) RESIDUES 147-148 WERE OMITTED FROM ALL CHAINS DUE TO POOR DENSITY. 4. THE COORDINATION OF ALL FOUR ZINC IONS ARE EQUIVALENT. HOWEVER, THE ENVIRONMENT AROUND THE ZINC ION IN CHAIN D DISTORTS DURING REFINEMENT. THE STRUCTURE WAS INITIALLY SOLVED BY MOLECULAR REPLACEMENT USING THE 1EFZ SEARCH MODEL AND REFINED AGAINST THE 1.9 A NATIVE DATA. DURING REFINEMENT, 2.1 A DATA FROM A MAD EXPERIMENT AT THE ZINC EDGE WERE USED TO CALCULATE EXPERIMENTAL PHASES. THE SUBSTRUCTURE COULD BE SOLVED DE NOVO USING SHELXD AND THE PHASES WERE REFINED WITH AUTOSHARP. THESE PHASES WERE EXTENDED WITH DM USING AMPLITUDES FROM HIGHER RESOLUTION (1.9 A) NATIVE DATA SET. THESE DENSITY MODIFIED ZN-MAD PHASES WERE USED AS RESTRAINTS IN SUBSEQUENT REFINEMENT CYCLES AGAINST THE 1.9 A NATIVE DATA AND WERE INCLUDED IN THE FINAL REFINEMENT.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.229
6626
5 %
RANDOM
Rwork
0.193
-
-
-
all
0.195
-
-
-
obs
-
124830
96.9 %
-
Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
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