Clustering was performed using the CFX manager software by Bio-Rad. Total Protein Extracts and protein quantification In order to obtain protein extracts for Western blot analysis mESC were lysed with 100μl of RIPA buffer (Sigma-Aldrich) supplemented with 2mM of phenylmethylsulphonyl fluoride-PMSF (Sigma-Aldrich) and 2x Halt phosphatase inhibitor cocktail (Pierce, Rockford, IL) as described elsewhere [8 ].

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His white back, gridironed with scars, was as soft as a baby's.

saxe blue: