SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN ... SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED.
Mass: 18.015 Da / Num. of mol.: 330 / Source method: isolated from a natural source / Formula: H2O
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Details
Compound details
ENGINEERED RESIDUE HIS 337 GLN, CHAIN X. (RESIDUE NUMBER 313 IN COORDINATE RECORDS BELOW).
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal
Density Matthews: 3.05 Å3/Da / Density % sol: 59.4 %
Crystal grow
Temperature: 294 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: CRYSTALS OF HIS313GLN NIR WERE GROWN BY THE HANGING-DROP VAPOUR DIFFUSION METHOD AT 21OC. 2ML OF 6-8 MG ML-1 PROTEIN IN 10 MM TRIS-HCL PH 7.1 WAS MIXED WITH AN EQUAL VOLUME OF RESERVOIR ...Details: CRYSTALS OF HIS313GLN NIR WERE GROWN BY THE HANGING-DROP VAPOUR DIFFUSION METHOD AT 21OC. 2ML OF 6-8 MG ML-1 PROTEIN IN 10 MM TRIS-HCL PH 7.1 WAS MIXED WITH AN EQUAL VOLUME OF RESERVOIR SOLUTION CONSISTING OF 25% PEG-MME 550, 10 MM ZINC SULPHATE, 0.1M MES PH 6.5 AND SUSPENDED OVER A 500 ML RESERVOIR. CRYSTALS OF BOTH MUTANTS WERE AN INTENSE BLUE COLOUR AND GREW WITHIN TWO DAYS TO APPROXIMATE DIMENSIONS 0.9 X 0.6 X 0.1 MM IN A RHOMBOHEDRAL MORPHOLOGY. FOR HIS313GLN_NO2.-, 10MM SODIUM NITRITE WAS ADDED TO THE RESERVOIR SOLUTION PRIOR TO CRYSTALLISATION.
Resolution: 1.72→37.53 Å / Cor.coef. Fo:Fc: 0.957 / SU B: 1.867 / SU ML: 0.059 / Cross valid method: THROUGHOUT / ESU R: 0.097 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.21
2257
5.1 %
RANDOM
Rwork
0.18
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obs
0.182
44676
97.5 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK