Polypeptide
Polypeptide is a type of polymer that is composed of amino acids. The term is often used to refer to a short protein or a segment of a protein. Polypeptides are formed through the process of protein biosynthesis, in which amino acids are linked together by peptide bonds.
Structure[edit | edit source]
Polypeptides are made up of a sequence of amino acids. Each amino acid in the sequence is connected to the next by a peptide bond. This bond is formed through a process known as dehydration synthesis, in which a water molecule is removed.
The sequence of amino acids in a polypeptide is determined by the sequence of nucleotides in the gene that codes for it. This sequence is translated into a polypeptide during the process of protein synthesis.
Function[edit | edit source]
Polypeptides play a crucial role in the functioning of living organisms. They are the building blocks of proteins, which are essential for the structure, function, and regulation of the body's tissues and organs.
Polypeptides can also function as hormones, enzymes, antibodies, and more. For example, insulin is a polypeptide hormone that regulates the amount of glucose in the blood.
See also[edit | edit source]
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