AMINO ACID SEQUENCE STUDIES OF PLANT CYTOCHROMES c

Abstract

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The amino acid sequence of cytochrome c from Asterias Rubens L. (Common starfish)

“…Many other cytochromes c have an identical sequence (-Gly-Arg-Lys-Thr-Gly-) to Asterias in the region 37-41, but no similar anomalous cleavage has been reported [1,2], although partial hydrolysis at threonine-40 was reported in human [13]. However, the activity of TPCK-trypsin at tyrosine-97 of cytochrome c is quite common and may be due to a less than complete ethanolic denaturation coupled with the position of this residue in the three-dimensional structure of the molecule [14,15].…”

Proteins and Nucleic Acids in Plant Systematics

“…In view of the fact that relatively few animal vertebrate cytochrome c sequences had been successfully used to construct a phylogenetic tree which corresponded to the fossil data, Boulter et al (1970) concluded at that time that "if the present potential of the method continues to be realised it is hoped to establish the major branches of a phylogenetic tree for the plant kingdom in the future". In view of the fact that relatively few animal vertebrate cytochrome c sequences had been successfully used to construct a phylogenetic tree which corresponded to the fossil data, Boulter et al (1970) concluded at that time that "if the present potential of the method continues to be realised it is hoped to establish the major branches of a phylogenetic tree for the plant kingdom in the future".…”