MPEP 2412.03(c)
"Modified Amino Acid"

Ninth Edition of the MPEP, Revision 07.2022, Last Revised in February 2023

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2412.03(c)    "Modified Amino Acid" [R-07.2022]

[Editor Note: This section is applicable to all applications filed on or after July 1, 2022, having disclosures of nucleotide and/or amino acid sequences as defined in 37 CFR 1.831(b).]

37 C.F.R. 1.831  Requirements for patent applications filed on or after July 1, 2022, having nucleotide and/or amino acid sequence disclosures.

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  • (g) "Modified amino acid" includes any amino acid as described in paragraph 3(e) of WIPO Standard ST.26.
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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 acid, L-glycine, L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-phenylalanine, L-proline, L-pyrrolysine, L-serine, L-selenocysteine, L-threonine, L-tryptophan, L-tyrosine, or L-valine. See MPEP § 2412.03(b).