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  2. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics. This article contains the list of certain mnemonics in chemistry.

  3. Amino acid - Wikipedia

    en.wikipedia.org/wiki/Amino_acid

    Nonpolar amino acid interactions are the primary driving force behind the processes that fold proteins into their functional three dimensional structures. [32] None of these amino acids' side chains ionize easily, and therefore do not have pK a s, with the exception of tyrosine (Tyr, Y). The hydroxyl of tyrosine can deprotonate at high pH ...

  4. Tyrosine - Wikipedia

    en.wikipedia.org/wiki/Tyrosine

    In addition to the common amino acid L-tyrosine, which is the para isomer (para-tyr, p-tyr or 4-hydroxyphenylalanine), there are two additional regioisomers, namely meta-tyrosine (also known as 3-hydroxyphenylalanine, L-m-tyrosine, and m-tyr) and ortho-tyrosine (o-tyr or 2-hydroxyphenylalanine), that occur in nature.

  5. 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 a small subset of this group that possess a 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 ...

  6. Isoleucine - Wikipedia

    en.wikipedia.org/wiki/Isoleucine

    Isoleucine (symbol Ile or I) [1] is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH + 3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO − form under biological conditions), and a hydrocarbon side chain with a ...

  7. Asparagine - Wikipedia

    en.wikipedia.org/wiki/Asparagine

    Asparagine (symbol Asn or N [2]) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH + 3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO − form under biological conditions), and a side chain carboxamide ...

  8. Active site - Wikipedia

    en.wikipedia.org/wiki/Active_site

    The active site consists of amino acid residues that form temporary bonds with the substrate, the binding site, and residues that catalyse a reaction of that substrate, the catalytic site. Although the active site occupies only ~10–20% of the volume of an enzyme, [ 1 ] : 19 it is the most important part as it directly catalyzes the chemical ...

  9. Hydrophobicity scales - Wikipedia

    en.wikipedia.org/wiki/Hydrophobicity_scales

    Also, amino acid side chain affinity for water was measured using vapor phases. [14] Vapor phases represent the simplest non polar phases, because it has no interaction with the solute. [18] The hydration potential and its correlation to the appearance of amino acids on the surface of proteins was studied by Wolfenden.