Found in the gastrointestinal tract, the three Trefoil proteins, TFF1, 2, and 3 have been shown to play an important role in intestinal mucosal defence and repair. Specifically, TFF2 has been shown to inhibit gastrointestinal motility and secretion of the gastric acid.
Alternative Names
TFF2 ; Spasmolysin ; Spasmolytic polypeptide ; SP
Quantity
20 µg
Regulatory
RUO
Source
E. coli
Host
Human
Endotoxin Level
<1.0 EU/μg of recombinant protein as determined by the LAL method
Biological Activity Comment
The ED(50) was determined by the dose-dependent proliferation of immortalized human pancreatic cells and was found to be <5ng/mL.
Weight
12.3 kDa
Description
Reconstitute at 100 μg/mL in sterile PBS
Format
Lyophilized PowderLyophilized from a 0.2 μm filtered solution in PBS
Purity
>95% as determined by SDS-PAGE
Storage
The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity.