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. Author manuscript; available in PMC: 2007 Jun 1.
Published in final edited form as: Virology. 2006 Dec 6;360(2):376–387. doi: 10.1016/j.virol.2006.10.049

FIGURE 1.

FIGURE 1

Schematic representation of dicistronic RNAs and modifications to the IRES element used to demonstrate IRES control of translation. LUC; luciferase gene, IRES; internal ribosome entry site, CAT; chloramphenicol acetyl transferase.