Single cell sorting was performed using a MoFlo Astrios cell-sorter (Beckman Coulter Life Sciences, Indianapolis, IN, USA) as described previously [18 (link)]. Briefly, the cells were stained with DAPI (Dojindo, Kumamoto, Japan), and DAPI and AcGFP1 were excited with 355 and 488 nm lasers, respectively. In total, 1000 wild-type Pv11 cells were seeded as a feeder layer in each well of a 96-well plate prior to sorting. The sorted and the feeder cells were grown for two weeks, and then a second sorting (bulk cell sorting) was performed to eliminate the feeder cells.
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