| Sequences are allowed to include: < 10 specifically defined nucleotides < 4 specifically defined amino acids <\/td> | Unacceptable sequences: < 10 specifically defined nucleotides< 4 specifically defined amino acids Note:<\/strong> Any nucleotide and amino acid other than \u201cn\u201d and \u201cX\u201d is regarded as being \u201cspecifically specified.\u201d<\/td><\/tr>| Possible to incorporate all priority applications.<\/td> | Only the most important application can be submitted.<\/td><\/tr> | | The names of all applicants and inventors may be listed.<\/td> | There can only be one applicant name and potentially one inventor name. This should be the first\/primary applicant or innovator.<\/td><\/tr> | | Only one invention title can be mentioned.<\/td> | It is possible to include several invention titles in different languages.<\/td><\/tr> | | Normal Latin characters must be used to write the inventors\u2019 names and the names of their inventions.<\/td> | Invention titles can contain any valid Unicode character, and inventor names can contain any valid Unicode character combined with a basic Latin translation.<\/td><\/tr> | | Sequences are only categorized as DNA, RNA, or PRT.<\/td> | Sequences are classified as DNA, RNA, or AA and as the mandatory qualifier \u201cmol type\u201d to further specify the type of molecule.<\/td><\/tr> | | Organism names: Latin genus\/speciesVirus name\u201cArtificial sequence\u201d \u201cUnknown\u201d<\/td> | Organism names: Latin genus\/speciesVirus name\u201cSynthetic construct\u201d\u201cUnidentified\u201d<\/td><\/tr> | | \u201cu\u201d stands for uracil in nucleotide sequences.<\/td> | The symbol \u201cu\u201d is not a recognized nucleotide symbol. In DNA and RNA sequences, the letter \u201ct\u201d stands for thymine and uracil, respectively. Modified nucleotide bases uracil in DNA and thymine in RNA must be represented by the symbol \u201ct\u201d in ST.26, and described in a feature table using the feature key \u201cmodified base.\u201d<\/td><\/tr> | | Three-letter acronyms are used to represent amino acid sequences.<\/td> | One-letter acronym is used to represent an amino acid sequence.<\/td><\/tr> | | The definition of \u201cn\u201d and \u201cXaa\u201d variable residues must be provided in a feature.<\/td> | A default value is assumed for \u201cn\u201d and \u201cX\u201d variable residues with no definitions. A definition is essential when \u201cn\u201d or \u201cX\u201d represent residues other than the default value.<\/td><\/tr> | | The format for feature locations is not clearly defined.<\/td> | Strictly defined formats for feature location; allows usage of \u201c<\u201d and \u201c>\u201d in all sequence types as well as \u201c^,\u201d \u201cjoin,\u201d \u201corder,\u201d and \u201ccomplement\u201d in nucleotide sequences.<\/td><\/tr> | | Nucleotide sequence and amino acid translation, known as \u201cmixed mode\u201d sequence, is acceptable.<\/td> | \u201cMixed mode\u201d sequences are not permitted, but a \u201ctranslation\u201d qualifier could include a translation of a nucleotide.<\/td><\/tr><\/tbody><\/table>Table 1: Key Differences between ST.25 and ST.26 Standards<\/strong><\/figcaption><\/figure>\n\n\n\n <\/p>\n\n\n\n <\/span>Major Features of ST.26 Sequence Listing Standard<\/span><\/h2>\n\n\n\nThe major features of ST.26 that apply to all sequences, including nucleotide and amino acid sequences, are listed below:<\/p>\n\n\n\n | |