Green fluorescent stain for K562 cells

Hi,

For the NK cytotoxicity assay, I would like to label the K562 target cells 
with a green fluorescent label
Ideally the stain should have minimal impact on cell viability & negligible 
transfer to other cells as I incubate PBMCs with the K562 target cells then 
determine percentage dead target cells using propidium iodide.

Could anyone suggest an appropriate dye ?

Thanks
Paul
---------------------
Paul Connellan
Research Associate	
Natural Products Pharmacology Unit
(Joint Venture ACCMER/CPP)
Centre for Phytochemistry & Pharmacology,
T Block,
Southern Cross University,
Lismore NSW 2480

Phone: +61 02 66223211
Fax:	 +61 02 66223459

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