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Fig. 6. Intercellular transfer of HOXC8 is insensitive to CK2. (A-C) Intercellular transfer of HOXC8 expressed alone (A), HOXC8 co-expressed with CK2{alpha}/ß (B) or of HOX-C8SRD expressed alone (C) was analysed as in Fig. 3. Intercellular transfer of HOXC8 is not inhibited by kinase overexpression (B). Ectopic addition of cEN2 SRD at the C terminus of HOXC8 has a strong inhibitory effect on intercellular transfer (C). Arrowheads indicate transfected COS-7 cells. Scale bar: 30 µm.