Anti-PI3 Kinase p110 beta antibody [Y384]

Supplementary info

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

Activity summary

Phosphatidylinositol 3-kinase p110 beta (PI3 kinase p110β) also known as PI3Kβ is an enzyme that belongs to the class I PI3-kinases. It functions as a catalytic subunit in the PI3K complex. The PI3 kinase p110β has a molecular mass of approximately 122 kDa. This protein is expressed in various tissues with notable presence in heart and skeletal muscles. The enzyme is responsible for phosphorylating PIP2 to generate PIP3 an essential step in signaling pathways that regulate cell growth and survival.

Biological function summary

PI3 kinase p110β plays a role in the regulation of cellular processes such as proliferation migration and metabolism. It is a component of the PI3K complex comprised of regulatory and catalytic subunits which form functional homodimers or heterodimers. This complex is activated by various receptors including G-protein coupled receptors (GPCRs) and tyrosine kinase receptors. By converting PIP2 to PIP3 it aids in the recruitment and activation of downstream signaling proteins like AKT.

Pathways

PI3 kinase p110β is integral in the PI3K/AKT signaling pathway and also contributes to the regulation of the mTOR pathway. These pathways are critical for controlling cellular responses to growth signals and maintaining homeostasis. Association with proteins like PTEN which negatively regulates the PI3K/AKT pathway highlights its importance in maintaining cellular balance. PI3 kinase p110β also interacts with other PI3 proteins like p110α showing the intricate network of signaling it participates in.

Associated diseases and disorders

PI3 kinase p110β has been implicated in cancer and cardiovascular diseases. Its overactivation leads to unchecked cellular proliferation contributing significantly to oncogenesis. Alterations in the PI3K/AKT/mTOR pathway are common in breast cancer highlighting its interaction with proteins such as ERBB2. In cardiovascular disorders PI3 kinase p110β influences heart development and function where it can impact the action of related proteins like PI3 kinase p110α. The study of PI3 kinase p110β in these diseases offers potential for targeted therapies and improved understanding of its pathological roles.