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  2. Non-proteinogenic amino acids - Wikipedia

    en.wikipedia.org/wiki/Non-proteinogenic_amino_acids

    Lysine. Technically, any organic compound with an amine (–NH 2) and a carboxylic acid (–COOH) functional group is an amino acid. The proteinogenic amino acids are small subset of this group that possess central carbon atom (α- or 2-) bearing an amino group, a carboxyl group, a side chain and an α-hydrogen levo conformation, with the exception of glycine, which is achiral, and proline ...

  3. Amino acid - Wikipedia

    en.wikipedia.org/wiki/Amino_acid

    Amino acid. Structure of a typical L -alpha-amino acid in the "neutral" form. Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. [1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins. [2]

  4. Branched-chain amino acid - Wikipedia

    en.wikipedia.org/wiki/Branched-chain_amino_acid

    A branched-chain amino acid (BCAA) is an amino acid having an aliphatic side-chain with a branch (a central carbon atom bound to three or more carbon atoms). Among the proteinogenic amino acids, there are three BCAAs: leucine, isoleucine, and valine. [ 1 ] Non-proteinogenic BCAAs include 2-aminoisobutyric acid and alloisoleucine.

  5. Essential amino acid - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acid

    Essential amino acid. An essential amino acid, or indispensable amino acid, is an amino acid that cannot be synthesized from scratch by the organism fast enough to supply its demand, and must therefore come from the diet. Of the 21 amino acids common to all life forms, the nine amino acids humans cannot synthesize are valine, isoleucine ...

  6. List of amino acids - Wikipedia

    en.wikipedia.org/wiki/List_of_amino_acids

    Appearance. move to sidebarhide. From Wikipedia, the free encyclopedia. Amino acids are listed by type: Proteinogenic amino acid. Non-proteinogenic amino acids. Topics referred to by the same term. This disambiguationpage lists articles associated with the title List of amino acids. If an internal linkled you here, you may wish to change the ...

  7. Category:Non-proteinogenic amino acids - Wikipedia

    en.wikipedia.org/wiki/Category:Non-proteinogenic...

    Β-Alanine. 4-Aminobenzoic acid. Γ-Aminobutyric acid. S-Aminoethyl-L-cysteine. 2-Aminoisobutyric acid. Aminolevulinic acid. Azetidine-2-carboxylic acid.

  8. Protein primary structure - Wikipedia

    en.wikipedia.org/wiki/Protein_primary_structure

    Protein primary structure is the linear sequence of amino acids in a peptide or protein. [1] By convention, the primary structure of a protein is reported starting from the amino -terminal (N) end to the carboxyl -terminal (C) end. Protein biosynthesis is most commonly performed by ribosomes in cells.

  9. Norvaline - Wikipedia

    en.wikipedia.org/wiki/Norvaline

    Norvaline (abbreviated as Nva) is an amino acid with the formula CH 3 (CH 2) 2 CH (NH 2)CO 2 H. The compound is a structural analog of valeric acid and also an isomer of the more common amino acid valine. [2] Like most other α-amino acids, norvaline is chiral. It is a white, water-soluble solid.