Crystallization and preliminary X-ray analysis of a peridinin-chlorophyll a protein from Amphidinium carterae.

Crystals of a water-soluble (Mr approximately 39,000) peridinin-chlorophyll a protein from Amphidinium carterae are reported. The crystals diffract to 2.2 A and belong to a monoclinic (B2) and a triclinic (P1) space group. Spectra of the protein in the crystal and in solution are almost identical.