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Proteins are large molecules consisting of chains of amino acids, which are essential components of the structure and function of all organisms. For example, structural proteins like Keratin is the proteins that support and makes human hair, nails etc to grow. In animals and insects, Kreatin is the protein that makes the spider spin silk fibres for making their cocoons and webs. Collagen and Elastin proteins provide the fibrous framework in animals connecting tissue. The protein is organized in different structures. See also the Genetic Code diagram Genome, Chromosomes, and Clone

  • The primary structure is sequence or change in amino acids
  • Secondary structure occurs when the sequence of amino acids are linked by hydrogen bonds
  • Tertiary structure
  • Quaternary structure

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