What is the status of peptide nucleic acid (PNA) residues in amino acid sequence listings?
According to MPEP 2412.03(b), peptide nucleic acid (PNA) residues have a special status in amino acid sequence listings. The MPEP clearly states: “A peptide nucleic acid (PNA) residue is not considered an amino acid, but is considered a nucleotide.” This distinction is important for patent applicants and examiners because: PNA residues should not be included…
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