[Primary structure of tyrosine-containing histone Fi peptide by means of dansyl ultramicromethod].

A method of ultramicroanalysis of dansyl-aminoacids is worked out and used for studying the primary structure of tirosin-containing F1 histone peptide isolated from calf thymus nitriated unfractionated F1 histone. The peptide is shown to be common for all the histone subfractions. The analysis of amino acid composition and C-terminal sequency using carboxypeptidase Y has shown that the peptide structure is identical to the amino acid sequence of the respective peptide from the subfraction 3 of rabbit thymus F1 histone, in the latter glycine being substituted with alanine.