Recombinant Rat Epidermal Growth Factor (EGF) is a purified Prokaryotic Protein. Purity: >97% by SDS-PAGE. Host: E. coli. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Rat (Rattus norvegicus). Target Name: Epidermal Growth Factor (EGF). Target Synonyms: URG, Beta-Urogastrone, Pro-epidermal growth factor. Accession Number: P07522. Gene ID: 25313. Expression Region: Asn974~Arg1026. Tag Info: N-terminal His and GST Tag. Theoretical MW: 38kDa. Buffer: PBS, pH7.4, containing 0.01% SKL, 5% Trehalose. Storage: -20C. Avoid repeated freeze/thaw cycles. Restrictions: For Research Use Only. Not for use in diagnostic procedures.