How does the MPEP define standard amino acids?

While the MPEP doesn’t directly define standard amino acids, it indirectly provides this information by referencing WIPO Standard ST.26. According to MPEP 2412.03(c): WIPO Standard ST.26, paragraph 3(e), identifies “modified amino acid” to mean any amino acid as described in the definition of “amino acid”, other than L-alanine, L-arginine, L-asparagine, L-aspartic acid, L-cysteine, L-glutamine, L-glutamic…

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