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. Author manuscript; available in PMC: 2010 Mar 30.
Published in final edited form as: Virology. 2009 Jan 31;386(1):94–101. doi: 10.1016/j.virol.2008.12.040

Fig. 2.

Fig. 2

Regulatory regions of SV40 viral isolates. The viral origin of DNA replication spanning nucleotides 5192 to 31 is represented by the box labeled ORI; the 21-bp repeat region between nucleotides 40 and 103 is shown; the boxed number 72 is the 72-bp sequence within the enhancer region that is duplicated in some laboratory-adapted strains, with the rearranged enhancer region of SVPML-1 represented with boxes labeled 38, 23, 20 and a shaded box referring to nucleotides 252-263. Nucleotide numbers are based on that of SV40-776. Modified from Lednicky and Butel (2001) and Stewart et al. (1998).