ヒドロキシルアミン酸化還元酵素の構造解析 -回折強度の統計的評価によるHemihedral双晶の結晶構造解析- [in Japanese] Structural analysis of hydroxylamine oxidoreductase. - Crystallographic studies from hemihedrally twinned crystals by analysis of intensity statistics - [in Japanese]
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The structure of hydroxylamine oxidoreductase from <I>Nitrosomonas europaea</I> has been determined by multiple isomorphous replacement. The crystals, space group <I>P</I>6<SUB>3</SUB>, were shown to be hemihedrally twinned. The observed intensities were found to be detwinned by the least squares method after the Britton's algorithm [Britton, D. (1972) . Acta Cryst. A28, 296-297], when several sets of intensity data were useful. The programs coded by Fortran language succeeded in determining the scale factors and degrees of twinnings. The analysis of data collected at various positions of one crystal of this enzyme suggested the heterogeneous distribution of twinning in the crystal.
X-RAYS 39(5), 373-380, 1997-10
The Crystallographic Society of Japan