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. 2012 Nov 19;288(1):442–454. doi: 10.1074/jbc.M112.413922

FIGURE 7.

FIGURE 7.

Model of the TLR3-responsive positive feedback loop mediating the response to nucleic acids through UNC93B1 up-regulation. Activation of TLR3 increases the transcription of UNC93B1 mRNA. UNC93B1 interacts with TLR3 and other NAS TLRs in the ER. UNC93B1 induces differential glycosylation and translocation of TLR3 to the plasma membrane where it can be activated by viral dsRNA from infected cells and defective virions and primes the responsiveness of TLR9.