Storage, Stability and Shipping:

The lyophilized protein is stable for at least one year from date of receipt at -70^oC. Upon reconstitution, this cytokine can be stored in working aliquots at 2^o - 8^oC for one month, or at -20^oC for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.

Endotoxin Level:

<1.0 EU/μg of recombinant protein as determined by the LAL method.

Molecular Weight:

6.9 kDa

Gene Aliases :

TFF1, Breast cancer estrogen-inducible protein, BCEI, PNR-2, Polypeptide P1.A, Protein pS2, Recombinant Human Trefoil Factor 1 (TFF1)

Reconstitution Protocol:

Reconstitute at 100 μg/mL in sterile PBS

Sample Cell Assay Data:

The ED (50) was determined by the dose-dependent proliferation of MCF7 cells and was found to be <0.5ng/mL.

Purity:

Recombinant Human TFF1 resolved on a 17% SDS_PAGE gel under reducing conditions and stained with Coomassie Brilliant Blue G-250