The secreted recombinant human RSV-F comprises 514 amino acids with a predicted molecular mass of 57.4 kDa. The RSV F0 precursor protein is cleaved into the disulfide-linked F1 and F2 subunits. As a result of glycosylation, the apparent molecular mass of the protein is approximately 45-55 kDa and 18 kDa in SDS-PAGE under reducing conditions, corresponding to the two subunits respectively.
Lyophilized from sterile 50mM Tris, 100mM NaCl, pH 8.0, 10% glycerol Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
安定性 & 保存条件
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human respiratory syncytial virus (RSV) (A2) Fusion glycoprotein / RSV-F Protein (ECD, His Tag): 画像
Human respiratory syncytial virus (RSV) (A2) Fusion glycoprotein / RSV-F Protein (ECD, His Tag): 別名
F Protein, RSV; HRSVgp08 Protein, RSV
RSV Fusion 背景情報
Human respiratory syncytial virus (HRSV) is the most common etiological agent of acute lower respiratory tract disease in infants and can cause repeated infections throughout life. It is classified within the genus pneumovirus of the family paramyxoviridae. Like other members of the family, HRSV has two major surface glycoproteins (G and F) that play important roles in the initial stages of the infectious cycle. The G protein mediates attachment of the virus to cell surface receptors, while the F protein promotes fusion of the viral and cellular membranes, allowing entry of the virus ribonucleoprotein into the cell cytoplasm. The fusion (F) protein of RSV is synthesized as a nonfusogenic precursor protein (F), which during its migration to the cell surface is activated by cleavage into the disulfide-linked F1 and F2 subunits. This fusion is pH independent and occurs directly at the outer cell membrane, and the F2 subunit was identifed as the major determinant of RSV host cell specificity. The trimer of F1-F2 interacts with glycoprotein G at the virion surface. Upon binding of G to heparan sulfate, the hydrophobic fusion peptide is unmasked and induces the fusion between host cell and virion membranes. Notably, RSV fusion protein is unique in that it is able to interact directly with heparan sulfate and therefore is sufficient for virus infection. Furthermore, the fusion protein is also able to trigger p53-dependent apoptosis.
Martin-Gallardo A. et al., 1993, J Gen Virol. 74 (3): 453-8.
Jose A M. et al., 1997, J Gen Virol. 78: 2411-8.
Feldman SA. et al., 1999, J Virol. 73 (8): 6610-7.
Zlateva K.T. et al., 2004, J Virol. 78 (9): 4675-83.
Trento A. et al., 2006, J Virol. 80 (2): 975-84.
Branigan P J. et al., 2006, J Gen Virol. 87 (2): 395-8.
Eckardt-Michel J. et al., 2008, J. Virol. 82: 3236-49.