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Antigène
Sarcomeric alpha Actinin
Sujet
The primary function of alpha-actinin 2 is to crosslink filamentous actin molecules and titin molecules from adjoining sarcomeres at Z-discs, a function that is modulated by phospholipids. It is clear from studies by Hampton etal. that this crosslinking can assume a variety of conformations, with preferences for 60° and 120° angles. Alpha-actinin 2 also functions in docking signaling molecules at Z-discs, and additional studies have also implicated alpha-actinin 2 in the binding of cardiac ion channels, Kv1.5 in particular.