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. 2014 Mar 18;5:60. doi: 10.3389/fpls.2014.00060

FIGURE 2.

FIGURE 2

Virus replication complex (VRC) and RNP movement complex in the ER tubule. (A) Potexvirus constructs the VRC, which consists of vRNA, replicase, and host proteins (i.e., ribosomes) for replication of vRNA. Replicase (brown circles) produces progeny (+) vRNA from (-) vRNA as a template in the ER structure, and host ribosomes (dark blue) translate viral proteins (yellow chain) from progeny (+) vRNA. (B) The two kinds of RNP movement complexes in potexviruses. In one case, the PD-transportable form of potexvirus vRNA is partially encapsidated by the CP subunit, and TGB1 protein is associated with the 5′ end of the partially CP-coated vRNA (TGB1-CP-vRNA). In the second case, TGB1 protein binds to the CP-encapsidated virion (TGB1-virion). The blue circles indicate CP in the first case, and the thick blue line indicates CP and virion in the second case.