Ubiquitin is a small, highly conserved protein that plays a crucial role in cellular processes, particularly in the regulation of protein degradation via the ubiquitin-proteasome pathway. It consists of 76 amino acids and is characterized by its ability to covalently attach to target proteins, marking them for degradation or altering their function. This post-translational modification is essential for maintaining cellular homeostasis, regulating various biological processes such as cell cycle progression, DNA repair, and responses to stress. Ubiquitin's structure features a compact globular shape, which allows it to interact with various enzymes involved in the ubiquitination process, including E1 (activating), E2 (conjugating), and E3 (ligating) enzymes. The presence of multiple lysine residues in ubiquitin enables the formation of polyubiquitin chains, which can signal different cellular outcomes. Ubiquitin is found in all eukaryotic cells, highlighting its fundamental role in cellular function and signaling. Its study has significant implications in understanding diseases, including cancer and neurodegenerative disorders, where ubiquitin-mediated processes may be disrupted.

Ubiquitin

60267-61-0: Ubiquitin is a small, highly conserved protein that plays a crucial role in cellular processes, particularly in the regulation of protein degradation via the ubiquitin-proteasome pathway. It consists of 76 amino acids and is characterized by its ability to covalently attach to target proteins, marking them for degradation or altering their function. This post-translational modification is essential for maintaining cellular homeostasis, regulating various biological processes such as cell cycle progression, DNA repair, and responses to stress. Ubiquitin's structure features a compact globular shape, which allows it to interact with various enzymes involved in the ubiquitination process, including E1 (activating), E2 (conjugating), and E3 (ligating) enzymes. The presence of multiple lysine residues in ubiquitin enables the formation of polyubiquitin chains, which can signal different cellular outcomes. Ubiquitin is found in all eukaryotic cells, highlighting its fundamental role in cellular function and signaling. Its study has significant implications in understanding diseases, including cancer and neurodegenerative disorders, where ubiquitin-mediated processes may be disrupted.

<p>Ubiquitin is a small inorganic molecule that binds to other proteins to form conjugates. Ubiquitin is involved in a number of cellular processes, such as proteolysis and DNA repair. Ubiquitin interacts with lysine residues, forming covalent bonds with the amino acid. This interaction can be reversed through hydrolysis. The oxygen atoms in ubiquitin are located at the carboxyl groups and can form reactive molecules with other biomolecules, such as nucleophiles or water molecules. These interactions may lead to irreversible changes in the protein's structure or function. Ubiquitin has been used extensively in vaccine development and hydration studies.</p>

CAS 60267-61-0

Ubiquitin

Ubiquitin, human

Ref: 3D-KCA26761