Recombinant Shigella flexneri Outer membrane protease icsP (icsP)

TTNYPLFIPDNISTDISLGSLSGKTKERVYHPKEGGRKISQLDWKYSNATIVRGGIDWKLIPKVSFGVSGWTTLGNQKASMVDKDWNNSNTPQVWTDQSWHPNTHLRDANEFELNLKGWLLNNLDYRLGLIAGYQESRYSFNAMGGSYIYSENGGSRNKKGAHPSGERTIGYKQLFKIPYIGLTANYRHENFEFGAELKYSGWVLSSDTDKHYQTETIFKDEIKNQNYCSVAANIGYYVTPSAKFYIEGSRNYISNKKGDTSLYEQSTNISGTIKNSASIEYIGFLTSAGIKYIF

Protease responsible for the cleavage of IcsA between 'Arg-758' and 'Arg-759', removing the entire alpha domain from IscA localized on the bacterial surface. This proteolytic activity contributes to the maintenance of a tight polar cap of IcsA, which is important to Shigella actin-based motility.

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.

"The virulence plasmid pWR100 and the repertoire of proteins secreted by the type III secretion apparatus of Shigella flexneri." Buchrieser C., Glaser P., Rusniok C., Nedjari H., d'Hauteville H., Kunst F., Sansonetti P.J., Parsot C. Mol. Microbiol. 38:760-771 (2000)

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.