37 CFR Appendix A to Subpart G of Part 1 - Appendix A to Subpart G of Part 1—List of Nucleotides
Appendix A to Subpart G of Part 1—List of Nucleotides
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 | Origin of designation |
|---|---|---|
| a | a |
|
| g | g |
|
| c | c |
|
| t | t | thymine. |
| u | u |
|
| r | g or a | purine. |
| y | t/u or c | p |
| m | a or c | a |
| k | g or t/u |
|
| s | g or c | strong interactions 3H-bonds. |
| w | a or t/u |
|
| b | g or c or t/u | not a. |
| d | a or g or t/u | not c. |
| h | a or c or t/u | not g. |
| v | a or g or c | not t, not u. |
| n | a or g or c or t/u, unknown, or other | a |
[86 FR 57052, Oct. 14, 2021]