Proteins, evolution of
Mulligan, Pamela K. Formerly, Department of Biochemistry, University of North Carolina, Chapel Hill, North Carolina.
- Classical versus protein-derived phylogenies
- Types of proteins studied
- Rate of evolution
- Mitochondrial cytochrome c
- Globin genes
- Links to Primary Literature
- Additional Readings
Proteins are large organic molecules that are involved in all aspects of cell structure and function. Proteins are made up of polypeptide chains, each constructed from a basic set of 20 amino acids, covalently linked in specific sequences. Each amino acid is coded by three successive nucleotide residues in deoxyribonucleic acid (DNA); the sequence of amino acids in a polypeptide chain, which determines the structure and function of the protein molecule, is thus specified by a sequence of nucleotide residues in DNA. See also: Gene; Protein
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