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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The amino acid sequence of Acanthamoeba profilin.

The complete amino acid sequence of Acanthamoeba profilin was determined by aligning tryptic, chymotryptic, thermolysin, and Staphylococcus aureus V8 protease peptides together with the partial NH2-terminal sequences of the tryptophan-cleavage products. Acanthamoeba profilin contains 125 amino acid residues, is NH2-terminally blocked, and has trimethyllysine at position 103. At five positions in the sequence two amino acids were identified indicating that the amoebae express at least two slightly different profilins. Charged residues are unevenly distributed, the NH2-terminal half being very hydrophobic and the COOH-terminal half being especially rich in basic residues. Comparison of the Acanthamoeba profilin sequence with that of calf spleen profilin (Nystrom, L. E., Lindberg, U., Kendrick-Jones, J., and Jakes, R. (1979) FEBS Lett. 101, 161-165) reveals homology in the NH2-terminal region. We suggest, therefore, that this region participates in the actin-binding activity.[1]


  1. The amino acid sequence of Acanthamoeba profilin. Ampe, C., Vandekerckhove, J., Brenner, S.L., Tobacman, L., Korn, E.D. J. Biol. Chem. (1985) [Pubmed]
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