thumbnail, 400px, Trimeric form of a TNF-α mutant
A homotrimer is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respon ...
which is composed of three identical units of
polypeptide
Peptides (, ) are short chains of amino acids linked by peptide bonds. Long chains of amino acids are called proteins. Chains of fewer than twenty amino acids are called oligopeptides, and include dipeptides, tripeptides, and tetrapeptides ...
.
Examples
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Hemagglutinin (influenza)
Influenza hemagglutinin (HA) or haemagglutinin ">/sup> (British English) is a homotrimeric glycoprotein found on the surface of influenza viruses and is integral to its infectivity.
Hemagglutinin is a Class I Fusion Protein, having multifunc ...
*
Spike protein (coronavirus)
Spike (S) glycoprotein (sometimes also called spike protein, formerly known as E2) is the largest of the four major structural proteins found in coronaviruses. The spike protein assembles into trimers that form large structures, called spi ...
See also
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Protein trimer
References
Peptides
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