Anti-SNAPC1 antibody [EPR16466]

Supplementary info

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

Activity summary

SNAPC1 also known as small nuclear RNA activating complex polypeptide 1 is a component of the snRNA-activating protein complex. It has a mass of about 43 kDa. SNAPC1 plays an important role in the transcription initiation of small nuclear RNA (snRNA) genes. It functions through interaction with other components of the SNAPc complex. Researchers observe its expression in various tissues but it appears particularly active in cells with high transcriptional demand.

Biological function summary

The role of SNAPC1 lies in the assembly and regulation of the SNAPc complex. This complex functions primarily in the transcription of snRNA essential for mRNA processing and gene expression regulation. By participating in the formation of the snRNA-activating protein complex SNAPC1 facilitates the correct transcription and processing of snRNA a critical component in the spliceosomal machinery. It achieves this by forming stable interactions with other SNAPc components including SNAPC2 and SNAPC3 contributing to pre-mRNA splicing.

Pathways

SNAPC1 integrates into two major cellular pathways: transcription initiation and RNA splicing. It closely interacts with elements such as RNA polymerase II and SNAPC4 within these pathways. By securing a stable interaction with these elements SNAPC1 supports efficient transcription of snRNA and its subsequent processing. The proper function of SNAPC1 and related proteins ensures the accuracy of mRNA splicing impacting overall gene expression and cellular function.

Associated diseases and disorders

Defects or dysregulations involving SNAPC1 can link to disorders like Spinal Muscular Atrophy (SMA) and systemic lupus erythematosus (SLE). In SMA disruptions in snRNA processing lead to defects in the creation of essential proteins needed for motor neuron survival wherein SNAPC1 may hold a supporting role. In SLE abnormal snRNA processing can contribute to the production of autoantibodies linking SNAPC1 to the autoimmune pathway. SNAPC1's functional interactions with proteins like SMN (Survival of Motor Neuron) protein in SMA further illustrate its involvement in these disorders.