Recombinant Pseudomonas aeruginosa Type IV major pilin protein PilA (pilA), partial

Major component of the type IV pilus (T4P) that plays a role in surface and host cell adhesion, colonization, biofilm maturation, virulence, and twitching, a form of surface-associated motility facilitated by cycles of extension, adhesion, and retraction of T4P fibers. In addition, plays a critical role in type II secretion of exoenzymes by interacting with specific components such as XcpT or XcpU. Modulates host calcium signaling through interaction with host calcium-modulating cyclophilin ligand.

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.

"Type IV Pili Can Mediate Bacterial Motility within Epithelial Cells." Nieto V., Kroken A.R., Grosser M.R., Smith B.E., Metruccio M.M.E., Hagan P., Hallsten M.E., Evans D.J., Fleiszig S.M.J. MBio 10:0-0 (2019)

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.