Crystallization and Structural Analysis of Cytochrome<i>c</i>₆from the Diatom<i>Phaeodactylum tricornutum</i>at 1.5 Å Resolution

Abstract

We determined for the first time the crystal structure of diatom cytochrome c(6) from Phaeodactylum tricornutum at 1.5 A resolution. The overall structure of the protein was classified as a class I c-type cytochrome. The physicochemical properties of the protein were examined by denaturation with guanidine hydrochloride and urea, and compared with those of other algal cytochrome c(6).