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Structural characteristics of primary amino acid sequences of precursor polypeptides that represent small post-translationally modified peptides. Deduced amino acid sequences of (A) PSK, (B) PSY1, (C) CLV3 and CLE2, (D) CEP1 (E) RGF1, and their representative homologs are shown. Domains encoding mature peptides are underlined. Identical amino acid residues are highlighted in black, and similar amino acid residues are highlighted in gray.
