Amino acid sequence of ferredoxin isolated from Cyanidium caldarium strain RK-1.

Abstract

Ferredoxin was isolated from ther eukaryotic alga Cyanidium caldarium strain RK-1 and its amino acid sequence was determined. The ferredoxin is composed of 97 amino acid residues, and its molecular weight is 10,599 excluding the iron-sulfur cluster. The amino acid sequence differs from that of C. caldarium strain 1355/1, by 24 amino acid substitutions plus one deletion at the amino terminus.