Protein ORF3

UniProtKB accession:  P69616

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Small multifunctional phosphoprotein involved in virion morphogenesis, egress and counteracting host innate immunity. Plays critical roles in the final steps of viral release by interacting with host TSG101, a member of the vacuolar protein-sorting pathway and using other cellular host proteins involved in vesicle formation pathway. Acts also as a viroporin and forms ion conductive pores allowing viral particle release. Impairs the generation of type I interferon by down-regulating host TLR3 and TLR7 as well as their downstream signaling pathways. Down-regulates the phosphorylation of host IRF3 via the interaction with host SIRP-alpha, thereby inhibiting IFN-I expression. Interacts with host microtubules.