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2. Valine - Wikipedia

   en.wikipedia.org/wiki/Valine

   Valine (symbol Val or V) [4] 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 isopropyl group, making it a non-polar aliphatic amino acid.

3. Proteinogenic amino acid - Wikipedia

   en.wikipedia.org/wiki/Proteinogenic_amino_acid

   L Leu Leu is essential for humans, and behaves similarly to isoleucine and valine. Methionine: M Met Met is essential for humans. Always the first amino acid to be incorporated into a protein, it is sometimes removed after translation. Like cysteine, it contains sulfur, but with a methyl group instead of hydrogen. This methyl group can be ...

4. Essential amino acid - Wikipedia

   en.wikipedia.org/wiki/Essential_amino_acid

   Of the 21 amino acids common to all life forms, the nine amino acids humans cannot synthesize are valine, isoleucine, leucine, methionine, phenylalanine, tryptophan, threonine, histidine, and lysine. [ 1 ] [ 2 ]

5. 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]

6. Amino acid synthesis - Wikipedia

   en.wikipedia.org/wiki/Amino_acid_synthesis

   Leucine, like valine, regulates the first step of its pathway by inhibiting the action of the α-Isopropylmalate synthase. [18] Because leucine is synthesized by a diversion from the valine synthetic pathway, the feedback inhibition of valine on its pathway also can inhibit the synthesis of leucine.

7. Valine—tRNA ligase - Wikipedia

   en.wikipedia.org/wiki/Valine—tRNA_ligase

   The 3 substrates of this enzyme are ATP, L-valine, and tRNA(Val), whereas its 3 products are AMP, diphosphate, and L-valyl-tRNA(Val). This enzyme belongs to the family of ligases, to be specific those forming carbon-oxygen bonds in aminoacyl-tRNA and related compounds. The systematic name of this enzyme class is L-valine:tRNAVal ligase (AMP ...

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9. Leucine - Wikipedia

   en.wikipedia.org/wiki/Leucine

   Leucine (symbol Leu or L) [3] is an essential amino acid that is used in the biosynthesis of proteins.Leucine is an α-amino acid, meaning 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 isobutyl group, making it a non ...