Respiratory Syncytial Virus (RSV) F0 Protein (Control)

Respiratory syncytial virus (RSV) is a filamentous enveloped, negative-sense, single-stranded RNA virus. The RSV genome is 15.2 kb and contains 10 genes encoding 11 proteins. The M2 gene has two overlapping ORFs, generating both M2-1 (a transcription processivity factor) and M2-2 (a protein that governs the switch from transcription to genome replication) . The first two transcribed genes are the nonstructural proteins NS1 and NS2, which together inhibit apoptosis and interferon responses.The RSV virion contains a lipid bilayer displaying the fusion (F), attachment (G) and small hydrophobic (SH) proteins. The F and G proteins are in greater abundance than the SH protein, which is a pentameric ion channel thought to be involved in delaying apoptosis in infected cells. The viral envelope is supported by a layer of matrix (M) and M2-1 proteins. The M protein is a non-glycosylated structural protein lining the inner leaflet of the viral envelope, and it associates with the cytoplasmic domain of the F protein. M2-1 mediates the association between M and the enclosed ribonucleoprotein complexes (RNPs) comprising viral genomic RNA tightly associated with nucleoprotein (N) . Also associated with the RNP is the RNA-dependent RNA polymerase complex (RdRp) composed of the large polymerase subunit (L), a phosphoprotein polymerase cofactor (P) and N.