Anti-hnRNP A1 (citrulline R140) antibody [EPR20178]

Supplementary info

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

Activity summary

Heterogeneous nuclear ribonucleoprotein A1 (hnRNP A1) also known just as hnRNP A1 is a multifunctional protein that plays important roles in RNA processing mechanisms. It is a member of the hnRNP protein family involved in the packaging of nascent pre-mRNA. hnRNP A1 has a molecular mass of approximately 34-38 kDa and shows a widespread expression in various cells and tissues. This protein is recognized for its ability to bind to RNA molecules contributing to their proper processing splicing and transport within the cellular context.

Biological function summary

HnRNP A1 is involved in RNA binding and splicing contributing to the formation of spliceosomes the complexes responsible for pre-mRNA splicing. The protein aids in alternative splicing influencing mRNA diversity and stability. hnRNP A1 interacts with other proteins in the hnRNP family remodeling ribonucleoprotein complexes and affecting their functions. These interactions ensure proper mRNA maturation impacting gene expression regulation within the cell.

Pathways

HnRNP A1 is integral to critical cellular mechanisms such as the regulation of mRNA transport and splicing. It influences the DNA damage response pathway by modulating gene expression required for cellular repair and stability. hnRNP A1 also cooperates with other RNA binding proteins like the splicing factors SR proteins to orchestrate the splicing machinery. These interactions are pivotal in maintaining cellular homeostasis and response to stress.

Associated diseases and disorders

HnRNP A1 is notably related to neurodegenerative diseases like Amyotrophic Lateral Sclerosis (ALS) and certain types of cancer. Abnormalities in its expression or mutations can lead to disrupted cellular processes contributing to disease pathology. In ALS dysregulation of hnRNP A1 affects neuronal RNA metabolism and is associated with the TDP-43 protein a marker of neurodegeneration. In cancer hnRNP A1 influences tumor development through its role in alternative splicing and gene expression modification linking it to oncogenic signaling pathways.