Anti-hnRNP C1/C2 antibody [EPNCIR152]

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

HnRNP C1/C2 also known as heterogeneous nuclear ribonucleoprotein C comprises two alternatively spliced proteins C1 protein and C2 protein which have molecular weights of approximately 39 kDa and 41 kDa respectively. These proteins function mainly in the nucleus and are expressed ubiquitously in various tissues. They play a fundamental role in mRNA processing including pre-mRNA splicing polyadenylation and stabilization. As components of the hnRNP complex they bind to nascent RNA transcripts to regulate their maturation and transport.

Biological function summary

HnRNP C1/C2 participates in the assembly of large ribonucleoprotein complexes that are essential for mRNA metabolism. It acts as a core component of the spliceosome machinery where it influences the alternative splicing of pre-mRNA. Apart from its structural role hnRNP C1/C2 may contribute to the proper assembly and functioning of splicing factors and other proteins such as 4f4 within the nucleus suggesting its important role in gene expression regulation.

Pathways

HnRNP C1/C2 is involved in the RNA processing pathway directly impacting mRNA export and stability. By interacting with other proteins such as serine/arginine-rich splicing factors it modulates the splicing accuracy and efficiency of various transcripts. This participation in the spliceosome pathway emphasizes its importance in ensuring efficient gene expression and processing. hnRNP C1/C2 might also interact with various transcription machinery components linking RNA processing to transcriptional regulation.

Associated diseases and disorders

HnRNP C1/C2 links to neurological diseases and certain cancers. In neurological disorders misregulation of hnRNP C1/C2 can result in aberrant mRNA splicing which may contribute to the pathogenesis of diseases like spinal muscular atrophy. Its involvement in cancer is related to its ability to modulate gene expression and cellular proliferation often observed in tumors with disrupted mRNA processing pathways. HnRNP C1/C2 interactions with proteins such as the tumor suppressor p53 may influence cell cycle regulation and contribute to tumor progression.