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  2. FASTA format - Wikipedia

    en.wikipedia.org/wiki/FASTA_format

    In bioinformatics and biochemistry, the FASTA format is a text-based format for representing either nucleotide sequences or amino acid (protein) sequences, in which nucleotides or amino acids are represented using single-letter codes. The format allows for sequence names and comments to precede the sequences.

  3. Amino acid - Wikipedia

    en.wikipedia.org/wiki/Amino_acid

    The 20 amino acids that are encoded directly by the codons of the universal genetic code are called standard or canonical amino acids. A modified form of methionine ( N -formylmethionine ) is often incorporated in place of methionine as the initial amino acid of proteins in bacteria, mitochondria and plastids (including chloroplasts).

  4. Protein primary structure - Wikipedia

    en.wikipedia.org/wiki/Protein_primary_structure

    Protein sequence is typically notated as a string of letters, listing the amino acids starting at the amino-terminal end through to the carboxyl-terminal end. Either a three letter code or single letter code can be used to represent the 22 naturally encoded amino acids, as well as mixtures or ambiguous amino acids (similar to nucleic acid ...

  5. Genetic code - Wikipedia

    en.wikipedia.org/wiki/Genetic_code

    If amino acids were randomly assigned to triplet codons, there would be 1.5 × 10 84 possible genetic codes. [81]: 163 This number is found by calculating the number of ways that 21 items (20 amino acids plus one stop) can be placed in 64 bins, wherein each item is used at least once. [82]

  6. ATC code V06 - Wikipedia

    en.wikipedia.org/wiki/ATC_code_V06

    ATC code V06 General nutrients is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products. [1] [2] [3] Subgroup V06 is part of the anatomical group V Various. [4]

  7. Point accepted mutation - Wikipedia

    en.wikipedia.org/wiki/Point_accepted_mutation

    The 20 amino acids translated by the genetic code vary greatly by the physical and chemical properties of their side chains. [4] However, these amino acids can be categorised into groups with similar physicochemical properties. [4]

  8. Proteinogenic amino acid - Wikipedia

    en.wikipedia.org/wiki/Proteinogenic_amino_acid

    The essential amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine (i.e. H, I, L, K, M, F, T, W, V). [3] The proteinogenic amino acids have been found to be related to the set of amino acids that can be recognized by ribozyme autoaminoacylation systems. [4]

  9. KDEL (amino acid sequence) - Wikipedia

    en.wikipedia.org/wiki/KDEL_(amino_acid_sequence)

    The abbreviation KDEL is formed by the corresponding letters to each amino acid. This letter system was defined by the IUPAC and IUBMB in 1983, and is as follows: K—Lysine; D—Aspartic acid; E—Glutamic acid; L—Leucine; Therefore, the KDEL sequence in three letter code is: Lys-Asp-Glu-Leu.