How does WIPO Standard ST.26 define “unknown” or “other” nucleotides and amino acids?

MPEP 2412.03(a) refers to WIPO Standard ST.26, which defines “unknown” or “other” nucleotides and amino acids using specific symbols: For nucleotides, the symbol “n” represents “unknown” or “other” For amino acids, the symbol “X” represents “unknown” or “other” The MPEP provides tables for both nucleotide and amino acid symbols, stating: n a or c or…

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How are unknown nucleotides represented in a patent application?

According to MPEP 2412.05(b), unknown nucleotides in patent applications should be represented as follows: Use the symbol “n” to represent any unknown nucleotide in the sequence Further describe the unknown nucleotide in a feature table using the feature key “unsure” The symbol “n” is equivalent to only one residue The MPEP states, “Any “unknown” nucleotide…

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