Anti-alpha Actinin 4 antibody [RM287] - Loading Control

Supplementary info

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

Activity summary

Alpha Actinin 4 sometimes referred to as ACTN4 or alpha-actinin is a protein with a mass of approximately 100 kDa. It functions as an actin-binding protein particularly involved in the crosslinking of actin filaments. This protein is expressed widely with high levels found in muscle kidney and brain tissues. Alpha-actinin 4 also plays important roles in cellular structure and integrity by binding actin filaments in various cellular contexts.

Biological function summary

The role of alpha-actinin 4 extends to maintaining cytoskeletal structure and cell motility. It forms part of the larger actin-binding complex that supports cellular adhesion and mechanical stability. By linking actin filaments it allows cells to withstand mechanical stress and maintain their shape. Additionally alpha-actinin 4 contributes to cellular processes like cytokinesis and signal transduction by serving as a scaffold for signaling proteins.

Pathways

Alpha-actinin 4 interacts with diverse cellular signaling mechanisms. Key pathways include the actin cytoskeleton signaling and integrin-mediated cell adhesion. In these pathways alpha-actinin 4 works alongside proteins such as integrins and vinculin facilitating communication between the extracellular matrix and the cytoskeleton. These interactions are critical for cellular responses to environmental stimuli and adaptation during movement or development.

Associated diseases and disorders

Alpha-actinin 4 has notable impacts on conditions like focal segmental glomerulosclerosis (FSGS) and cancer. In FSGS mutation or dysregulation of alpha-actinin 4 contributes to podocyte dysfunction leading to proteinuria and kidney damage. Its role in cancer often involves altered expression influencing cell migration and invasion. The interaction with other proteins like nephrin in FSGS or E-cadherin in cancer highlights the significance of alpha-actinin 4 in pathogenic processes.