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1. Chill 200 3d embryos after removing from chorions.

2. Rinse in 0.5% chilled bleach for 2 minutes and then in zero calcium Ringer for 2 minutes.

3. Transfer to a Dounce homogenizer with a mini-mum of liquid and homogenize well.

4. Resuspend in 1 ml L-15 supplemented with 0.3 mg/ml glutamine, 50 U/ml penicillin, 0.05 mg/ml streptomycin and 0.8 mM CaCl2.

5. Store at -20°C.



1 Comment

  1. Anonymous

    Hi,

    I'm trying to prepare this embryo extract but I'm a bit confused with the supplemented L-15. Do I have to use the L-15 with glutamine included at 0,3g/L and add another 0,3mg/ml ? I've got a combined solution of penn/strep at 10 000 U/ml, do I need to decrease the streptomycine concentration ?

    Thanks for replying,