Recombinant Human Trefoil Factor 1

Cat No.

RP00834

Product Specifications

Product Type

Recombinant protein

Applications

Bioactivity, Endotoxin

Source

E. coli.

UniProt No.P04155
Purity

> 97 % by SDS-PAGE and HPLC analyses.

Bioactivity

Fully biologically active when compared to standard. The ED50 as determined by a chemotaxis bioassay using human MCF-7 cells is less than 10 μg/ml, corresponding to a specific activity of > 100 IU/mg.

Endotoxin

Less than 1 EU/μg of rHuTFF1 as determined by LAL method.

Molecular Weight

Approximately 13.2 kDa, a homodimer consisting of two 60 amino acid polypeptide chains, which includes a 40-amino acid trefoil motif containing three conserved intramolecular disulfide bonds.

Formulation

Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, pH 7.4, 150 mM NaCl.

Alternative Names

TFF1, BCEI, D21S21, HP1.A, HPS2, pNR-2, pS2, Human

Storage

-20C

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Research Area

Signal Transduction