Recombinant human MST4 protein

Supplementary info

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

Activity summary

MST4 also known as mammalian sterile 20-like kinase 4 is a serine/threonine kinase with a molecular mass of approximately 53 kDa. It belongs to the germinal center kinase (GCK) family and is expressed in various tissues showing higher levels in the brain and testis. MST4 localizes to the Golgi apparatus where it plays a role in regulating cellular processes.

Biological function summary

MST4 contributes to cell growth apoptosis and stress response signaling. It does not operate alone; MST4 is a part of the STRIPAK complex. The protein involves itself in the regulation of the actin cytoskeleton thereby influencing cell motility and polarity. By modulating these processes MST4 can impact developmental and stress-induced cellular pathways.

Pathways

MST4 participates in the Hippo signaling pathway which regulates organ size by controlling cell proliferation and apoptosis. In this pathway MST4 interacts with other proteins such as MST1 and MST2 to execute its functions. MST4 also participates in the MAPK signaling pathway where it connects to various cellular stress responses contributing to the transcriptional activity of downstream effectors.

Associated diseases and disorders

MST4 has implications in cancer and neurodegenerative diseases. Alterations in MST4 expression or activity have been associated with tumor progression in several cancers. Additionally it's linked to neurodegeneration through its interactions with proteins such as Tau where dysregulated pathways may lead to pathological conditions. These connections highlight the importance of MST4 in maintaining cellular homeostasis and the implications of its dysfunction in disease states.