Hi all,

I am using FuGENE to transiently transfect RPE1 cells for imaging. I usually seed them on coverslips and transfect them when they have reached 60-70% confluence. For 24-well dishes I use 30 uL OptiMEM, 500 ng DNA and 1.5 uL FuGENE. I normally fix the cells 2 days after transfection. Unfortunately, my plasmid does not express a reporter, so I cannot check for transfection efficiency before fixing.

My transfection efficiency is extremely low (

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