Peptides - Definition


Peptides are chemical agents belonging to the protein family. A peptide is composed of a mixture of several amino acids. Depending on the number of amino acids involved, peptides are categorized as dipeptides, composed of 2 amino acids, tripeptides, made up of 3 amino acids, and so on. Those composed of more than 10 amino acids are called polypeptides. These agents are involved in the composition of a large number of substances produced by the body, in particular hormones that regulate body functions, enzymes that carry out chemical reactions, transmitter molecules, neurotransmitters that carry nerve impulses, and so on.
Published by Jeff. Latest update on October 29, 2013 at 07:16 AM by Jeff.
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