Tetraspanin 9

Tetraspanin 9 is a protein that in humans is encoded by the TSPAN9 gene. It is a member of the tetraspanin family, a group of proteins characterized by the presence of four hydrophobic domains. The function of Tetraspanin 9 is not fully understood, but it is believed to play a role in various cellular processes.

Structure

Tetraspanin 9 is a small integral membrane protein that is part of the larger tetraspanin family. It contains four transmembrane domains, two extracellular loops, and short intracellular N- and C-termini. The protein is primarily located in the cell membrane, where it interacts with other proteins to form tetraspanin-enriched microdomains (TEMs).

Function

While the exact function of Tetraspanin 9 is not fully understood, it is believed to play a role in various cellular processes. It has been suggested that it may be involved in cell adhesion, signal transduction, and the regulation of cell proliferation and differentiation. Further research is needed to fully understand the role of this protein in the human body.

Clinical significance

Alterations in the expression of Tetraspanin 9 have been associated with various diseases. For example, it has been found to be overexpressed in certain types of cancer, suggesting that it may play a role in tumor growth and progression. Additionally, it has been implicated in autoimmune diseases, although the exact mechanism is not yet known.

See also

• Tetraspanin
• Protein
• Gene
• Cellular processes

References

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