RC3H1

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Roquin binding-secondary-structure.svg

RC3H1 (also known as Roquin-1) is a protein encoded by the RC3H1 gene in humans. This protein plays a crucial role in the regulation of immune responses and inflammation.

Function[edit | edit source]

RC3H1 is involved in the post-transcriptional regulation of mRNA stability and translation. It binds to specific sequences in the 3' untranslated regions (3' UTRs) of target mRNAs, leading to their degradation or translational repression. This regulatory mechanism is essential for maintaining proper immune function and preventing autoimmune diseases.

Structure[edit | edit source]

RC3H1 contains a RING finger domain, which is characteristic of proteins involved in ubiquitination processes. It also has a CCCH zinc finger domain that is responsible for binding to RNA. These structural features enable RC3H1 to interact with both proteins and RNA molecules, facilitating its role in mRNA regulation.

Role in Disease[edit | edit source]

Mutations or dysregulation of the RC3H1 gene have been associated with various autoimmune disorders and inflammatory diseases. For instance, alterations in RC3H1 function can lead to abnormal immune responses, contributing to the pathogenesis of conditions such as systemic lupus erythematosus and rheumatoid arthritis.

Interactions[edit | edit source]

RC3H1 interacts with several other proteins involved in mRNA regulation and immune signaling pathways. Notably, it interacts with Roquin-2 (encoded by the RC3H2 gene), which has similar functions in mRNA regulation. These interactions are critical for the coordinated control of immune responses.

Research[edit | edit source]

Ongoing research is focused on understanding the detailed mechanisms by which RC3H1 regulates mRNA stability and translation. Studies are also exploring the potential of targeting RC3H1 for therapeutic interventions in autoimmune and inflammatory diseases.

See also[edit | edit source]

References[edit | edit source]

External links[edit | edit source]


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Contributors: Prab R. Tumpati, MD