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. Author manuscript; available in PMC: 2013 Jul 26.
Published in final edited form as: Nat Protoc. 2012 Feb 2;7(2):374–393. doi: 10.1038/nprot.2011.446
Component Amount per tube (µl) Final
pCAGs-FlpE (2 mg ml−1 in H2O) 12.5 25 µg
cTGM (targeting vector in H2O) 25 50 µg
KH2 ES cells (in PBS) 900 4.5 × 106 cells