Amino acid sequence of the essential light chain of adductor muscle myosin from Ezo giant scallop, Patinopecten yessoensis.

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概要

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• The amino acid sequence of the essential light chain (abbreviated as SHLC) of adductor muscle myosin from Ezo giant scallop (Patinopecten yessoensis) was deter-mined by conventional methods. The light chain was composed of 156 amino acid residues with proline and lysine as its amino and carboxyl termini, respectively. Comparing this sequence with that of the SHLC from bay scallop (Aquipecten irradians), only 5 amino acid substitutions were recognized. The sequence homology between scallop and squid SHLCs was 53. 7%. On the other hand, a partially fragmented SHLC "modified SHLC'" reported by Konno and Watanabe (J. Bio-chem. 98, 141-148 (1985)) was prepared bychymotryptic digestion of the scallop myosin in the presence of EDTA, and was assigned as the carboxyl-terminal 106-residue peptide of the SHLC. This may suggest that the regulatory light chain covers the amino-terminal region of the SHLC in the myosin molecule.

• 社団法人 日本生化学会の論文

著者

• MATSUDA Genji

  Department of Biochemistry, Nagasaki University School of Medicine

• MARUTA Shinsaku

  Department of Biochemistry, Nagasaki University School of Medicine

• MAITA Tetsuo

  Department of Biochemistry, Nagasaki University School of Medicine

• KONNO Kunihiko

  Department of Food Science, Hokkaido University Faculty of Fisheries

• NORISUE Hajime

  Department of Biochemistry, Nagasaki University School of Medicine

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