Regulations last checked for updates: May 18, 2024

Title 37 - Patents, Trademarks, and Copyrights last revised: May 03, 2024
Appendix Appendix D - Appendix D to Subpart G of Part 1—List of Modified and Unusual Amino Acids

Source: World Intellectual Property Organization (WIPO) Handbook on Industrial Property Information and Documentation, Standard ST.25: Standard for the Presentation of Nucleotide and Amino Acid Sequence Listings in Patent Applications (2009).

Symbol Meaning
Aad2-Aminoadipic acid.
bAad3-Aminoadipic acid.
bAlabeta-Alanine, beta-Aminopropionic acid.
Abu2-Aminobutyric acid.
4Abu4-Aminobutyric acid, piperidinic acid.
Acp6-Aminocaproic acid.
Ahe2-Aminoheptanoic acid.
Aib2-Aminoisobutyric acid.
bAib3-Aminoisobutyric acid.
Apm2-Aminopimelic acid.
Dbu2,4 Diaminobutyric acid.
DesDesmosine.
Dpm2,2′-Diaminopimelic acid.
Dpr2,3-Diaminopropionic acid.
EtGlyN-Ethylglycine.
EtAsnN-Ethylasparagine.
HylHydroxylysine.
aHylallo-Hydroxylysine.
3Hyp3-Hydroxyproline.
4Hyp4-Hydroxyproline.
IdeIsodesmosine.
aIleallo-Isoleucine.
MeGlyN-Methylglycine, sarcosine.
MeIleN-Methylisoleucine.
MeLys6-N-Methyllysine.
MeValN-Methylvaline.
NvaNorvaline.
NleNorleucine.
OrnOrnithine.
[86 FR 57052, Oct. 14, 2021]
authority: 35 U.S.C. 2(b)(2), unless otherwise noted
source: 24 FR 10332, Dec. 22, 1959, unless otherwise noted.