Recombinant Human S100 alpha 6/PRA protein

Supplementary information

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

S100 alpha 6 also known as PRA is a member of the S100 protein family characterized by its small molecular weight of approximately 10 kDa. This protein expresses in various tissues including the heart skeletal muscle kidney and brain. The S100 family proteins commonly contain two EF-hand calcium-binding motifs which play key roles in intracellular and extracellular regulatory activities. S100 alpha 6 participates in calcium-dependent signal transduction processes that affect a range of cellular functions.

Biological function summary

S100 alpha 6 plays a significant role in intracellular calcium signaling and cytoskeletal dynamics. This protein often interacts as a part of protein complexes with various other proteins including annexin and tropomyosin contributing to vital cellular functions like contraction motility and cell cycle regulation. Its expression levels and spatial distribution influence cellular proliferation and differentiation making it an important component in several cell types.

Pathways

The protein S100 alpha 6 participates in essential pathways such as the MAPK and calcium signaling pathways. In the MAPK pathway S100 alpha 6 interacts with proteins like ERK1/2 influencing cell growth and apoptosis signaling cascades. In calcium signaling it helps regulate the release and uptake of calcium ions vital for maintaining cellular homeostasis and function. Through these pathways S100 alpha 6 is interconnected with other proteins like calmodulin and calcyclin which share similar physiological roles.

Increased or decreased expression of S100 alpha 6 relates to conditions such as cancer and cardiomyopathy. In cancer S100 alpha 6 often associates with dysregulated cell growth and can influence tumor progression through its interactions with proteins such as p53 and MDM2. In cardiomyopathy it affects calcium-handling properties in heart muscle cells linking it to cardiac dysfunction. These associations highlight its impact on disease development and progression making it a target for research in therapeutic strategies.