title: The amino acid sequences of the cytochromes c553 from Porphyridium cruentum and Aphanizomenon flos-aquae.
abstract: The amino acid sequences of cytochrome c553 from the eukaryotic red alga Porphyridium cruentum and from the prokaryotic cyanobacterium Aphanizomenon flos-aquae have been determined from the tryptic and cyanogen bromide peptides. The results indicate that a charged region of these proteins has evolved with special rapidity to accomodate a rapid evolution of a binding site in the P700 electron acceptor complex.
authors.affiliation: Department of Biochemistry, Purdue University, 47907, West Lafayette, IN, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Sprinkle
authors.forename: M
authors.initials: M
authors.lastname: Hermodson
authors.forename: D W
authors.initials: DW
authors.lastname: Krogmann