ISSN:
1399-0047
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Crystals of recombinant obelin, the Ca2+-regulated photoprotein from the marine hydroid Obelia longissima, have been grown from a solution containing PEG 8000 and potassium phosphate. Hexaminecobalt trichloride was used as an additive to increase the chance of crystallization. The crystals grow in a light yellow cubic form (0.5 × 0.5 × 0.45 mm) which diffracts to beyond 1.1 Å resolution. The crystals belong to the space group C2, with unit-cell parameters a = 83.43, b = 54.92, c = 52.99 Å, β = 112.00°. The asymmetric unit contains one molecule. Crystals exposed to calcium ion before and after X-ray irradiation emit light, confirming that the crystals consist of an active photoprotein.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0907444901016523