Definition(s)
- A molecule made up of amino acids that are needed for the body to function properly. Proteins are the basis of body structures such as skin and hair and of substances such as enzymes, cytokines, and antibodies.
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Definition from: Unified Medical Language System
(Physician Data Query)
at the National Library of Medicine
- A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene that codes for the protein. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions. Examples are hormones, enzymes, and antibodies.
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Definition from: Human Genome Project Information
at the U.S. Department of Energy
- A large complex molecule made up of one or more chains of amino acids. Proteins perform a wide variety of activities in the cell.
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Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
Related discussion in the Handbook
See also Understanding Medical Terminology.
