What is considered an “amino acid” in a Sequence Listing XML?
Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-29
This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.
According to MPEP 2412.03(b), an “amino acid” in a Sequence Listing XML includes:
- Any D- or L-amino acid
- Modified amino acids as defined in WIPO Standard ST.26
- Amino acids with modified or synthetic side chains
The MPEP states: Amino acids will be construed as unmodified L-amino acids unless further described in a feature table.
It’s important to note that peptide nucleic acid (PNA) residues are not considered amino acids, but are treated as nucleotides. Modified amino acids must be described in a feature table using appropriate feature keys and qualifiers.
Topics:
MPEP 2400 - Biotechnology
MPEP 2412.03 - Nucleotides And Amino Acids Included And Excluded From A "Sequence Listing Xml"
Patent Law
Patent Procedure