Crystals of the carotenoid protein from Arthrospira maxima containing uniformly oriented pigment molecules.
Article Details
- CitationCopy to clipboard
Kerfeld CA, Wu YP, Chan C, Krogmann DW, Yeates TO
Crystals of the carotenoid protein from Arthrospira maxima containing uniformly oriented pigment molecules.
Acta Crystallogr D Biol Crystallogr. 1997 Nov 1;53(Pt 6):720-3.
- PubMed ID
- 15299860 [ View in PubMed]
- Abstract
Crystals of a carotenoid protein from the cyanobacterium Arthrospira maxima have been grown in space group C2 with unit-cell dimensions a = 219.6, b = 40.3, c = 75.5 A and beta = 95.5 degrees. The crystals diffract X-rays to 2.3 A resolution and display unusual optical properties in polarized light that suggest that all of the carotenoid molecules in the crystals are oriented similarly. A slight increase in the concentration of a crystallization additive in the mother liquor induces macroscopic twinning, which is also visible when the crystals are illuminated with polarized light.