For example, proteins are primary constituents of numerous structures of the body, including hair, tendons, muscle ( Fig. They are fundamental components of all biological systems, performing a wide variety of structural and functional roles. Proteins are central to the processes of life. Proteins are not usually linear, but fold naturally into organized structures called native structures.Ī polymeric compound made up of various monomeric units called amino acids joined by peptide linkages. The linear arrangement of amino acids in a protein is called the sequence, or primary structure, and is highly specific for each protein.
Protein enzymes catalyze nearly all biochemical transformations. Proteins are polymers made of amino acids interlinked by peptide bonds.
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