85-6130-21　Outer Capsid Protein VP4, Recombinant, Rotavirus X, aa1-249, His-Tag, Myc-Tag 20ug　585665

特徴

• Spike-forming protein that mediates virion attachment to the host epithelial cell receptors and plays a major role in cell penetration, determination of host range restriction and virulence. Rotavirus attachment and entry into the host cell probably involves multiple sequential contacts between the outer capsid proteins VP4 and VP7, and the cell receptors. It is subsequently lost, together with VP7, following virus entry into the host cell. Following entry into the host cell, low intracellular or intravesicular Ca(2+) concentration probably causes the calcium-stabilized VP7 trimers to dissociate from the virion. This step is probably necessary for the membrane-disrupting entry step and the release of VP4, which is locked onto the virion by VP7.; Forms the spike 'foot' and 'body' and acts as a membrane permeabilization protein that mediates release of viral particles from endosomal compartments into the cytoplasm. During entry, the part of VP5* that protrudes from the virus folds back on itself and reorganizes from a local dimer to a trimer. This reorganization may be linked to membrane penetration.; Forms the head of the spikes and mediates the recognition of specific host cell surface glycans. It is the viral hemagglutinin and an important target of neutralizing antibodies.
• Source:Recombinant protein corresponding to aa1-249 from Rotavirus X Outer capsid protein VP4, fused to 10X His-Tag at N-terminal and Myc-Tag at C-terminal, expressed in E.coli.
• Molecular Weight:~33.8kD
• Amino Acid Sequence:MSLRSLLITTEAVGETTQTSDHQTSFSTRTYNEINDRPSLRVEKDGEKAYCFKNLDPVRYDTRMGEYPFDYGGQSTENNQLQFDLFTKDLMADTDIGLSDDVRDDLKRQIKEYYQQGYRAIFLIRPQNQEQQYIASYSSTNLNFTSQLSVGVNLSVLNKIQENKLHIYSTQPHIPSVGCEMITKIFRTDVDNENSLINYSVPVTVTISVTKATFEDTFVWNQNNDYPNMNYKDLIPAVTKNSIYHDVKR
• Storage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months after receipt at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.