brane forms. CLIC1 is a monomeric protein thatncontains a redox-active site similar to glutaredoxin; it functions as a anionselective channel. CLIC1 forms a dimer when oxidized and is then able to form chloride ion channels in bilayers and vesicles, whereas a reducing environmentnprevents this from occurring. Insulin concentration also plays a role in CLIC1 regulation, and the hormone may cause a subnuclear relocalization of CLIC1. CLIC1 is associated with macrophage activation; a downregulation of CLIC1 function prevents TNFα release induced by β-Amyloid protein (A-β) stimulation. This suggests a role for CLIC1 in several neurodegenerative processes, such as Alzheimer’s disease, a syndrome characterized by annaccumulation of A-β.
