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  2. Hydroxyproline - Wikipedia

    en.wikipedia.org/wiki/Hydroxyproline

    Hydroxyproline and proline play key roles for collagen stability. [4] They permit the sharp twisting of the collagen helix. [ 5 ] In the canonical collagen Xaa-Yaa-Gly triad (where Xaa and Yaa are any amino acid), a proline occupying the Yaa position is hydroxylated to give a Xaa-Hyp-Gly sequence.

  3. 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 ...

  4. Proline - Wikipedia

    en.wikipedia.org/wiki/Proline

    Furthermore, proline is rarely found in α and β structures as it would reduce the stability of such structures, because its side chain α-nitrogen can only form one nitrogen bond. Additionally, proline is the only amino acid that does not form a red-purple colour when developed by spraying with ninhydrin for uses in chromatography. Proline ...

  5. Secondary amino acid - Wikipedia

    en.wikipedia.org/wiki/Secondary_amino_acid

    In protein, hydroxyproline is incorporated into protein by hydroxylation of proline. Pipecolic acid, a heavier analog of proline, is found in efrapeptin. Sarcosine is a N-methylized glycine so its methyl group is used in many biochemical reactions. Azetidine-2-carboxylic acid, which is a smaller homolog of proline in plants.

  6. Scheduled vs free feeding cats: Which one is better? - AOL

    www.aol.com/lifestyle/scheduled-vs-free-feeding...

    Pros of free feeding cats Convenience: Owners don’t have to worry about maintaining a feeding schedule. Self-regulation: Some cats are natural grazers and can regulate their food intake.

  7. Procollagen-proline dioxygenase - Wikipedia

    en.wikipedia.org/wiki/Procollagen-proline_di...

    Procollagen-proline dioxygenase, commonly known as prolyl hydroxylase, is a member of the class of enzymes known as alpha-ketoglutarate-dependent hydroxylases. These enzymes catalyze the incorporation of oxygen into organic substrates through a mechanism that requires alpha-Ketoglutaric acid , Fe 2+ , and ascorbate .

  8. Purina: Has the Cat Food Brand Issued a Recall in 2024? - AOL

    www.aol.com/lifestyle/purina-cat-food-brand...

    The Missouri-based company came under fire on social media as multiple social media accounts “exposed” their pet foods for sickening and killing dozens of cats.

  9. Suture materials comparison chart - Wikipedia

    en.wikipedia.org/wiki/Suture_materials...

    Plain catgut Chromic catgut Polyglycolide (P.G.A.) Polydioxanone (PDS) ; Description: Adsorbable biological suture material. Plain is an adsorbable suture made by twisting together strands of purified collagen taken from bovine intestines.