Journal
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES
Volume 84, Issue 10, Pages 452-456Publisher
JAPAN ACAD
DOI: 10.2183/pjab.84.452
Keywords
commelinin; metal complex; blue pigment; anthocyanin; X-ray crystal structure
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The X-ray crystal structure of natural commelinin is investigated. The results demonstrate that commelinin is a tetranuclear (4 Mg2+) metal complex, in which two Mg2+ ions chelate to six anthocyanin molecules, while the other two Mg2+ ions bind to six flavone molecules, stabilizing the commelinin complex, a new type of supramolecular complex.
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