Ubiquitin

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Ubiquitin

Ubiquitin (/juːˈbɪkwɪtɪn/; from the Latin ubique meaning "everywhere") is a small regulatory protein that has been found in almost all tissues (ubiquitously) of eukaryotic organisms.

Etymology

The term "Ubiquitin" is derived from the Latin word ubique, which means "everywhere". This is in reference to the widespread presence of the protein in many different types of cells and tissues.

Function

Ubiquitin is involved in various cellular processes, such as protein degradation, DNA repair, cell cycle regulation, and immune response. It achieves these functions by being covalently attached to other proteins, a process known as ubiquitination.

Structure

Ubiquitin is a small protein composed of 76 amino acids. Despite its small size, it plays a crucial role in the regulation of various cellular processes.

Related Terms

See Also

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