Allograft Inflammatory Factor 1 Like (AIF1L) is a protein encoded by the AIF1L gene in humans. This protein is part of the allograft inflammatory factor family and is known for its role in actin binding and bundling. AIF1L is an actin-binding protein that promotes actin bundling and is involved in various cellular processes, including cytoskeletal organization and cell motility .
AIF1L is expressed in various tissues, with a biased expression in the kidney, spleen, and several other tissues . The protein is primarily localized in the cytoplasm and is associated with the actin cytoskeleton. It is also found in the plasma membrane, cell projections, and extracellular exosomes .
AIF1L is an actin-binding protein that promotes actin bundling, which is essential for maintaining the structural integrity of the cytoskeleton. Unlike other members of the allograft inflammatory factor family, AIF1L does not bind calcium and does not depend on calcium for its function . The protein plays a crucial role in various cellular processes, including actin filament bundle assembly and ruffle assembly .
AIF1L is involved in several biological processes, including cytoskeletal organization, cell motility, and intracellular signaling. The protein’s ability to bind and bundle actin filaments is critical for maintaining the structural integrity of the cytoskeleton and facilitating cellular movements . Additionally, AIF1L is implicated in various physiological and pathological conditions, including inflammation and immune responses .
Research has shown that AIF1L is associated with several inflammatory diseases and conditions. The protein’s role in actin bundling and cytoskeletal organization makes it a potential target for therapeutic interventions in diseases characterized by cytoskeletal abnormalities and inflammation . Further studies are needed to fully understand the clinical implications of AIF1L and its potential as a therapeutic target.