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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Mol Immunol. 2007 Dec 11;45(7):1883–1892. doi: 10.1016/j.molimm.2007.10.041

Fig. 5.

Fig. 5

PCNA in B cells. Western blot of PNA-lo and PNA-hi B cells from wildtype and AID-transgenic mice. Top, anti-PCNA; bottom, anti-actin. DT40, chicken B cell line as a positive control; in this cell mono-ubiquitination has been shown essential for efficient SHM (Arakawa et al., 2006).