Recombinant Human Lefty-A

Synonyms: Left-right determination factor 2, Endometrial bleeding-associated factor, Left-right determination factor A, Protein lefty-2, Protein lefty-A, Transforming growth factor beta-4, TGF-beta-4, LEFTY2, EBAF, LEFTA, LEFTYA, TGFB4

Mol. Weight: 45-50 kDa

Endotoxin: < 1 EU/µg as determined by LAL test.

Uniprot ID: O00292

Formulation: Lyophilized from a 0.2 μm filtered solution of 20 mM His, 10% Trehalose, 4% Mannitol, 100 mM NaCl, 0.1% Tween 80, pH 5.5.

Purity: Greater than 90% as determined by SDS-PAGE.

Reconstitution: Centrifuge the vial prior to opening, reconstitute in sterile distilled water or buffer of interest to concentration of 0.1-1mg/ml by gently pipetting 2-3 times, don't vortex

Storage: The lyophilized protein is stable at -20°C for up to 1 year, the protein solution can be stored at 2-8°C for up to 1 week under sterile condition. For extended storage, it is recommended to further dilute in working aliquots, store at -20°C to -80°C for 3 months. Avoid repeated freeze/thaw cycle.