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. 2009 Aug 18;73:99–170. doi: 10.1016/S0065-3527(09)73003-9

Figure 4.

Figure 4

Figure 4

Figure 4

Possible models of circularization. (A) Closed-loop model or circularization of cellular mRNAs. eIF4E+eIF4G+eIF4A, eIF4F complex; Stop, termination codon. (B) Models of circularization of Poliovirus genome. CL, cloverleaf structure; 3C and 3CD, viral proteases. (C) Role of rotavirus NSP3 in mRNA circularization. NSP3 mediates viral mRNA circularization (left) and inhibits cellular mRNA circularization (right). N and C, N- and C-terminal regions of proteins; TE, translation enhancer. Dashed arrows indicate interactions between proteins. Other indications are as in legend of Fig. 1.