TFF1 (Trefoil factor 1) is member of trefoil family, characterized by having at least one copy of the trefoil motif, a 40-amino acid domain that contains three conserved disulfides. Trefoil peptides are protease resistant molecules secreted throughout the gut that play a role in mucosal healing. TFF1 has also been detected in a number of carcinomas including cancers of the breast, pancreas and stomach. Purified by using conventional chromatography techniques. Source: Recombinant corresponding to aa25-84 of human TFF1, fused to His-tag at N-terminal, expressed in E.coli. AA Sequence: MGSSHHHHHH SSGLVPRGSH MEAQTETCTV APRERQNCGF PGVTPSQCAN KGCCFDDTVR GVPWCFYPNT IDVPPEEECE F Molecular Weight: ~9kD (81aa), confirmed by MALDI-TOF Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for at least 6 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
