Authority  Sprinzl, M. and Gauss, D.H.
Reference  Sprinzl, M. and Gauss, D.H.  Nucl Acid Res  10, r1 (1982).
           (note that in Cornish_Bowden, A.  Nucl Acid Res  13, 3021-3030
           (1985) the IUPAC-IUB declined to recommend a set of
           abbreviations for modified nucleotides)
Contact    NCBI
Scope      /mod_base

Listing

        Abbreviation    Modified base description
        ------------    -------------------------

        ac4c            4-acetylcytidine
        chm5u           5-(carboxyhydroxylmethyl)uridine
        cm              2'-O-methylcytidine
        cmnm5s2u        5-carboxymethylaminomethyl-2-thiouridine
        cmnm5u          5-carboxymethylaminomethyluridine
        d               dihydrouridine
        fm              2'-O-methylpseudouridine
        gal q           beta,D-galactosylqueosine
        gm              2'-O-methylguanosine
        i               inosine
        i6a             N6-isopentenyladenosine
        m1a             1-methyladenosine
        m1f             1-methylpseudouridine
        m1g             1-methylguanosine
        m1i             1-methylinosine
        m22g            2,2-dimethylguanosine
        m2a             2-methyladenosine
        m2g             2-methylguanosine
        m3c             3-methylcytidine
        m5c             5-methylcytidine
        m6a             N6-methyladenosine
        m7g             7-methylguanosine
        mam5u           5-methylaminomethyluridine
        mam5s2u         5-methoxyaminomethyl-2-thiouridine
        man q           beta,D-mannosylqueosine
        mcm5s2u         5-methoxycarbonylmethyl-2-thiouridine
        mcm5u           5-methoxycarbonylmethyluridine
        mo5u            5-methoxyuridine
        ms2i6a          2-methylthio-N6-isopentenyladenosine
        ms2t6a          N-((9-beta-D-ribofuranosyl-2-methyltiopurine-6-yl)car
                        bamoyl)threonine
        mt6a            N-((9-beta-D-ribofuranosylpurine-6-yl)N-methyl-carbam
                        oyl)threonine
        mv              uridine-5-oxyacetic acid-methylester
        o5u             uridine-5-oxyacetic acid (v)
        osyw            wybutoxosine
        p               pseudouridine
        q               queosine
        s2c             2-thiocytidine
        s2t             5-methyl-2-thiouridine
        s2u             2-thiouridine
        s4u             4-thiouridine
        t               5-methyluridine
        t6a             N-((9-beta-D-ribofuranosylpurine-6-yl)carbamoyl)threo
                        nine
        tm              2'-O-methyl-5-methyluridine
        um              2'-O-methyluridine
        yw              wybutosine
        x               3-(3-amino-3-carboxypropyl)uridine, (acp3)u
        OTHER           (requires /note= qualifier)
 

Amino acid abbreviations

Authority       IUPAC-IUB Joint Commission on Biochemical  Nomenclature.
Reference       IUPAC-IUB JOint Commission on Biochemical   Nomenclature.
                Nomenclature and Symbolism for Amino Acids and Peptides.
                Eur. J. Biochem. 138:9-37(1984).
Scope           /anticodon, /codon, /transl_except
Contact         EMBL
Listing (note that the abbreviations are legal values for amino acids, not the full names)

        Abbreviation    Amino acid name
        ------------    ---------------
       

        Ala     A       Alanine
        Arg     R       Arginine
        Asn     N       Asparagine
        Asp     D       Aspartic acid (Aspartate)
        Cys     C       Cysteine
        Gln     Q       Glutamine
        Glu     E       Glutamic acid (Glutamate)
        Gly     G       Glycine
        His     H       Histidine
        Ile     I       Isoleucine
        Leu     L       Leucine
        Lys     K       Lysine
        Met     M       Methionine
        Phe     F       Phenylalanine
        Pro     P       Proline
        Ser     S       Serine
        Thr     T       Threonine
        Trp     W       Tryptophan
        Tyr     Y       Tyrosine
        Val     V       Valine
        Asx     B       Aspartic acid or Asparagine
        Glx     Z       Glutamine or Glutamic acid.
        Xaa     X       Any amino acid.
        TERM            termination codon