Recombinant Neisseria meningitidis serogroup B Major outer membrane protein P.IA (porA)

DVSLYGEIKAGVEGRNYQLQLTEAQAANGGASGQVKVTKVTKAKSRIRTKISDFGSFIGFKGSEDLGDGLKAVWQLEQDVSVAGGGATQWGNRESFIGLAGEFGTLRAGRVANQFDDASQAIDPWDSNNDVASQLGIFKRHDDMPVSVRYDSPEFSGFSGSVQFVPIQNSKSAYTPAYYTKNTNNNLTLVPAVVGKPGSDVYYAGLNYKNGGFAGNYAFKYARHANVGRNAFELFLIGSGSDQAKGTDPLKNHQVHRLTGGYEEGGLNLALAAQLDLSENGDKTKNSTTEIAATASYRFGNAVPRISYAHGFDFIERGKKGENTSYDQIIAGVDYDFSKRTSAIVSGAWLKRNTGIGNYTQINAASVGLRHKF

Serves as a slightly cation selective porin. Major antigen on the gonococcal cell surface and it may have pathogenic properties in addition to its porin activity.

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Serves as a slightly cation selective porin. Major antigen on the gonococcal cell surface and it may have pathogenic properties in addition to its porin activity.

"Proteomic analysis of a meningococcal outer membrane vesicle vaccine prepared from the group B strain NZ98/254." Vipond C., Suker J., Jones C., Tang C., Feavers I.M., Wheeler J.X. Proteomics 6:3400-3413 (2006)

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.