The complete amino acid sequence of bullfrog (Rana catesbeiana) parvalbumin pI4.97

The primary structure of the parvalbumin (pI4.97) from bullfrog, Rana catesbeiana, skeletal muscle has been determined. It is composed of 110 amino acid residues and a free amino terminus, and has a molecular mass of 11919. The amino add sequences which are thought to be functionally important sites are also conserved in the bullfrog parvalbumin. The calculated phylogenic tree indicates that this parvalbumin belongs to the α group of parvalbumins. The mutation rate of parvalbumin was fairly rapid in frogs compared to mammals. The subdivergence of frogs is also discussed.