Description
Data Sheet
| Description | Allantoic fluid of 10 days old embryonated eggs, inoculated with influenza B virus, strain B/Malaysia/2506/04. The Influenza B Virus was purified by Ultracentrifugation with 10-40 % sucrose gradient. |
| Expression host | Baculovirus Insect Cells. |
| Formulation | The B/Malaysia/2506/04 solution contains STE, 0.1% sodium azide (NaN3) and 0.005% thimerosal. |
| Inactivation | Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 0.201 as the extinctioncoefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).2. Analysis by RP-HPLC, using a calibrated solution of Leptin as a Reference Standard. |
| Protein Background | Influenza-B virus is a genus in the virusfamily Orthomyxoviridae. The only species in this genus is called “Influenza B virus”. Influenza B virus only infects humansand seals. This limited host range is apparently in contrast with those caused by the similar Influenza virus Aas both mutate by both genetic drift and reassortment. Influenza-B virus evolves slower than A viruses and faster than C viruses. Influenza-B virus mutates at a rate 2-3 times lower than type A. However, influenza B mutates enough that lasting immunity is not possible. The Influenza B virus capsidis enveloped while its virionconsists of a matrix protein + envelope + nucleoprotein complex + nucleocapsid, and a polymerasecomplex. Influenza B is sometimes spherical and sometimes filamentous. Its 500 or so surface projections are made of hemagglutinin and neuraminidase.The Influenza B virus is 14648 nucleotideslong and consists of eight segments of linear negative-sense, single-stranded RNA. The multipartite genome is encapsidated, each segment in a separate nucleocapsid, and the nucleocapsids are surrounded by one envelope. |
| Purity | Greater than 90.0% as determined by SDS-PAGE. |
| Reagent Appearance | Sterile Filtered colorless solution. |
| References | Title:Broadly cross-reactive antibodies dominate the human B cell response against 2009 pandemic H1N1 influenza virus infection.Publication:Published January 10, 2011 // JEM vol. 208 no. 1 181-193 The Rockefeller University Press, doi: 10.1084/jem.20101352 © 2011 Wrammert et al.Link:http://jem.rupress.org/content/early/2011/01/06/jem.20101352.full |
| Stability | B/Malaysia/2506/04 although stable 4°C for 4 weeks, should be stored below -18°C. Please prevent freeze-thaw cycles. |
