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  2. β-Aminobutyric acid - Wikipedia

    en.wikipedia.org/wiki/Β-Aminobutyric_acid

    β-Aminobutyric acid (BABA) is an isomer of the amino acid aminobutyric acid with the chemical formula C 4 H 9 NO 2.It has two isomers, α-aminobutyric acid and γ-aminobutyric acid (GABA), a neurotransmitter in animals that is also found in plants, where it may play a role in signalling.

  3. Zwitterion - Wikipedia

    en.wikipedia.org/wiki/Zwitterion

    In chemistry, a zwitterion (/ ˈ t s v ɪ t ə ˌ r aɪ ə n / TSVIT-ə-ry-ən; from German Zwitter 'hermaphrodite'), also called an inner salt or dipolar ion, [1] is a molecule that contains an equal number of positively and negatively charged functional groups. [2] 1,2-dipolar compounds, such as ylides, are sometimes excluded from the ...

  4. α-Aminobutyric acid - Wikipedia

    en.wikipedia.org/wiki/Α-aminobutyric_acid

    α-Aminobutyric acid (AABA), also known as homoalanine in biochemistry, is a non-proteinogenic alpha amino acid with chemical formula C 4 H 9 NO 2. The straight two carbon side chain is one carbon longer than alanine, hence the prefix homo-. Homoalanine is biosynthesised by transaminating oxobutyrate, a metabolite in isoleucine biosynthesis.

  5. Aminobutyric acid - Wikipedia

    en.wikipedia.org/wiki/Aminobutyric_acid

    Aminobutyric acid or aminobutanoic acid may refer to any of three isomeric chemical compounds: α-Aminobutyric acid (AABA) β-Aminobutyric acid (BABA)

  6. Threonine - Wikipedia

    en.wikipedia.org/wiki/Threonine

    Threonine (symbol Thr or T) [2] is an amino acid that is used in the biosynthesis of proteins.It contains an α-amino group (which is in the protonated −NH + 3 form when dissolved in water), a carboxyl group (which is in the deprotonated −COO − form when dissolved in water), and a side chain containing a hydroxyl group, making it a polar, uncharged amino acid.

  7. File:Amino Acid Zwitterion Structural Formulae V.1.svg

    en.wikipedia.org/wiki/File:Amino_Acid_Zwitterion...

    The following other wikis use this file: Usage on af.wikipedia.org Zwitterioon; Usage on bs.wikipedia.org Dvopolarizirani ion; Usage on ca.wikipedia.org

  8. Beta sheet - Wikipedia

    en.wikipedia.org/wiki/Beta_sheet

    The side chains from the amino acid residues found in a β-sheet structure may also be arranged such that many of the adjacent sidechains on one side of the sheet are hydrophobic, while many of those adjacent to each other on the alternate side of the sheet are polar or charged (hydrophilic), [22] which can be useful if the sheet is to form a ...

  9. Amphoterism - Wikipedia

    en.wikipedia.org/wiki/Amphoterism

    This is what "amphoteric" means in Brønsted–Lowry acid–base theory. For example, amino acids and proteins are amphiprotic molecules because of their amine (−NH 2) and carboxylic acid (−COOH) groups. Self-ionizable compounds like water are also amphiprotic. Ampholytes are amphoteric molecules that contain both acidic and basic ...