Trefoil Factor 3, Recombinant, Human (TFF3, Intestinal Trefoil Factor, hITF, Polypeptide P1.B, hP1.B, ITF, TFI)

Catalog No : USB-149649
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Product name Trefoil Factor 3, Recombinant, Human (TFF3, Intestinal Trefoil Factor, hITF, Polypeptide P1.B, hP1.B, ITF, TFI)
Catalog No USB-149649
Supplier’s Catalog No 149649
Supplier US Biologicals
Source antigen Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight
Storage -20°C
Other names
Grade Highly Purified
Purity ~98% (SDS-PAGE and HPLC)
Form Supplied as a lyophilized powder.
Reactivity life 6 months
Note For reserch purpose only
Purity ~98% (SDS-PAGE and HPLC)
Description The Trefoil Factor peptides (TFF1, TFF2 and TFF3) are secreted in the gastrointestinal tract, and appear to play an important role in intestinal mucosal defense and repair. TFF-3 is expressed by goblet cells and in the uterus, and has also been shown to express in certain cancers, including colorectal, hepatocellular, and in biliary tumors. TFF3 may be useful as a molecular marker for certain types of cancer, but its role, if any, in tumorigenesis is unknown. TFF3 also promotes airway epithelial cell migration and differentiation. Recombinant human TFF3 is a 13.2kD homodimeric protein consisting of two 59aa chains, which includes a 40aa trefoil motif containing three conserved intramolecular disulfide bonds. Source: Recombinant protein corresponding to human Trefoil Factor 3, expressed in E.coli. Biological Activity: Determined by its ability to chemoattract human MCF-7 cells using a concentration range of 1-10ug/ml. Endotoxin: <0.1ng/ug (1EU/ug) AA Sequence: EEYVGLSANQ CAVPAKDRVD CGYPHVTPKE CNNRGCCFDS RIPGVPWCFK PLQEAECTF Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. 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.