Michele Cianci's Biography

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Lessons of Diffraction Resolution and how the Structures of the Various Crustacyanins have been Solved

Friday, 1 July 2011 at 11:15

Add to Calendar ▼2011-07-01 11:15:002011-07-01 12:15:00Europe/LondonLessons of Diffraction Resolution and how the Structures of the Various Crustacyanins have been SolvedSELECTBIOenquiries@selectbiosciences.com

The coloration of the lobster shell derives from astaxanthin molecules with proteins in complex with apocrustacyanin A1 solved using softer X-rays, and refined at 1.4Å resolution, and the b-crustacyanin dimer complex at 3.2Å resolution. The a-crustacyanin complex of eight b-crustacyanins has been studied by EM and SAXS at 30Å resolution. Several relevant carotenoids have been investigated by chemical crystallography at 0.8Å resolution, and their colours in solution and the crystalline state also determined.