SPY700-FastAct™ is a bright, far red, fluorogenic & non toxic F-actin stain based on our SPY™ dyes series. Its optimized structure allows to label F-actin in live cells with high specificity and low background. The unique and unmatched feature of SPY700-FastAct™ is its ability to label very dynamic actin, like LifeAct™* but the probe does not require any genetic manipulation, transfection or overexpression of fluorescent proteins. SPY700-FastAct™ is based on our bright, photostable & far red SPY700 fluorophore which is far superior than fluorescent proteins. SPY700-FastAct™ enables multicolor imaging with SPY505, SPY555, SPY595, SPY650, GFP or m-cherry. SPY700-FastAct™ can be imaged with standard Cy5 filterset. It can be used for widefield, confocal, SIM or STED imaging of living cells and tissue. *LifeAct™ is a registered trademark of Ibidi GmbH.
