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  • Title: Studies on a protamine (galline) from fowl sperm. 3. The total amino acid sequence of intact galline molecule.
    Author: Nakano M, Tobita T, Ando T.
    Journal: Int J Pept Protein Res; 1976; 8(6):565-78. PubMed ID: 992941.
    Abstract:
    Of the eight fractions (G-I-G-VIII) obtained from galline, a protamine from rooster sperm nuclei, the complete amino acid sequences of two fractions G-I and G-V have already been reported. Other fractions of galline purified repeatedly on the column of Bio-Gel CM-30 were submitted to structural analyses. The complete amino acid sequences of three (G-II, G-III and G-VII) of the fractions and the partial chemical structures of two (G-VI and G-VIII) of the fractions were established from the results of analyses of the tryptic and chymotryptic peptides together with those of end groups and terminal sequences. Remarkable similarities have so far been found in the sequences of these fractions. Combining these results with those complementarily explained in the following paper, it was finally confirmed that the intact galline molecule is composed of only one molecular species (G-VIII) and that fractions (G-I-G-VII) were derived from G-VIII by the action of an inherent protease in the preparation process. Consequently, the total amino acid sequence of the intact galline is concluded to be as follows: H-Ala-Arg-Tyr-Arg-Ser-Arg-Gly-Arg-Ser-Arg-Ser-Arg-Arg-Thr-Arg-Arg-Arg-Arg-Ser-Pro-Arg-Ser-Gly-Arg-Arg-Arg-Ser-Pro-Arg-Arg-Arg-Arg-Ser-Arg-Arg-Arg-Arg-Arg-Tyr-Gly-Ser-Ala-Arg-Arg-Ser-Arg-Arg-Ser-Gly-Gly-Val-Arg-Arg-Arg-Arg-Tyr-Gly-Ser-Arg-Arg-Arg-Arg-Arg-Arg-Tyr-OH.
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