37 CFR 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
Aad	2-Aminoadipic acid.
bAad	3-Aminoadipic acid.
bAla	beta-Alanine, beta-Aminopropionic acid.
Abu	2-Aminobutyric acid.
4Abu	4-Aminobutyric acid, piperidinic acid.
Acp	6-Aminocaproic acid.
Ahe	2-Aminoheptanoic acid.
Aib	2-Aminoisobutyric acid.
bAib	3-Aminoisobutyric acid.
Apm	2-Aminopimelic acid.
Dbu	2,4 Diaminobutyric acid.
Des	Desmosine.
Dpm	2,2′-Diaminopimelic acid.
Dpr	2,3-Diaminopropionic acid.
EtGly	N-Ethylglycine.
EtAsn	N-Ethylasparagine.
Hyl	Hydroxylysine.
aHyl	allo-Hydroxylysine.
3Hyp	3-Hydroxyproline.
4Hyp	4-Hydroxyproline.
Ide	Isodesmosine.
aIle	allo-Isoleucine.
MeGly	N-Methylglycine, sarcosine.
MeIle	N-Methylisoleucine.
MeLys	6-N-Methyllysine.
MeVal	N-Methylvaline.
Nva	Norvaline.
Nle	Norleucine.
Orn	Ornithine.

[86 FR 57052, Oct. 14, 2021]