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TFF1 recombinant protein :: Trefoil Factor-1 Recombinant Protein

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Catalog # MBS143342
Unit / Price
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  0.005 mg  /  $140 +1 FREE 8GB USB
  0.02 mg  /  $205 +1 FREE 8GB USB
  1 mg  /  $2,665 +3 FREE 8GB USB
TFF1 recombinant protein
Product Name

Trefoil Factor-1 (TFF1), Recombinant Protein

Popular Item
Full Product Name

Recombinant Human Trefoil Factor-1

Product Synonym Names
TFF1 Human; Trefoil Factor-1 Human Recombinant; TFF-1; TFF1; pS2; BCEI; HPS; HP1.A; pNR-2; D21S21; pS2 protein; Trefoil factor 1; Breast cancer estrogen-inducible protein
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
3D Structure
ModBase 3D Structure for P04155
E Coli
Greater than 97.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
The protein was lyophilized after dialysis against 1xPBS pH-7.4.
Sterile Filtered White lyophilized (freeze-dried) powder.
It is recommended to reconstitute the lyophilized TFF1 in sterile 18M Omega -cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
Biological Activity
Determined by its ability to activate ERK1/2 (a MAPkinase signaling molecule) using a concentration 1,000-2,000ng/ml corresponding to a specific activity of 500-1,000IU/mg.
Preparation and Storage
Lyophilized TFF1 although stable at room temperature for 3 weeks, should be stored desiccated below -18 degree C. Upon reconstitution TFF1 should be stored at 4 degree C between 2-7 days and for future use below -18 degree C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Other Notes
Small volumes of TFF1 recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
TFF1 recombinant protein
Description: TFF-1 Human Recombinant produced in E Coli is a homodimer, non-glycosylated, polypeptide chain containing 2 x 60 amino acids which includes a 40 amino acid trefoil motif containing 3 conserved interamolecular disulfide bonds and having a total molecular mass of 13.2 kDa. TFF-1 Human Recombinant is purified by proprietary chromatographic techniques.

Introduction: The Trefoil Factor peptides (TFF1, TFF2 and TFF3) are stable secretory proteins expressed in the gastrointestinal tract (gastric mucosa), and are involved in intestinal mucosal defense and repair. TFF1 is an essential protein for normal differentiation of the antral and pyloric gastric mucosa and functions as a gastric-specific tumor suppressor gene. TFF1 is a stabilizer of the mucous gel overlying the gastrointestinal mucosa that provides a physical barrier against various noxious agents. TFF1 protects the mucosa from isults, stabilizes the mucus layer, & affects healing of the epithelium. TFF1 is commonly expressed in tumors. TFF1 is related with the cell membrane of MCF-7 cells. High levels of TFF1 and TFF2 are found in serum from inflammatory bowel disease.
NCBI/Uniprot data below describe general gene information for TFF1. It may not necessarily be applicable to this product.
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Primary Accession #
UniProt Related Accession #
Molecular Weight
9,150 Da
NCBI Official Full Name
trefoil factor 1
NCBI Official Synonym Full Names
trefoil factor 1
NCBI Official Symbol
NCBI Official Synonym Symbols
pS2; BCEI; HPS2; HP1.A; pNR-2; D21S21
  [Similar Products]
NCBI Protein Information
trefoil factor 1; breast cancer estrogen-inducible protein; breast cancer estrogen-inducible sequence; gastrointestinal trefoil protein pS2; polypeptide P1.A
UniProt Protein Name
Trefoil factor 1
UniProt Synonym Protein Names
Breast cancer estrogen-inducible protein; PNR-2; Polypeptide P1.A; hP1.A; Protein pS2
Protein Family
UniProt Gene Name
UniProt Synonym Gene Names
BCEI; PS2; hP1.A  [Similar Products]
UniProt Entry Name
NCBI Summary for TFF1
Members of the trefoil family are characterized by having at least one copy of the trefoil motif, a 40-amino acid domain that contains three conserved disulfides. They are stable secretory proteins expressed in gastrointestinal mucosa. Their functions are not defined, but they may protect the mucosa from insults, stabilize the mucus layer, and affect healing of the epithelium. This gene, which is expressed in the gastric mucosa, has also been studied because of its expression in human tumors. This gene and two other related trefoil family member genes are found in a cluster on chromosome 21. [provided by RefSeq, Jul 2008]
UniProt Comments for TFF1
TFF1: Stabilizer of the mucous gel overlying the gastrointestinal mucosa that provides a physical barrier against various noxious agents. May inhibit the growth of calcium oxalate crystals in urine.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 21q22.3

Cellular Component: extracellular space

Molecular Function: protein binding; growth factor activity

Biological Process: negative regulation of cell proliferation; response to peptide hormone stimulus; maintenance of gastrointestinal epithelium; carbohydrate metabolic process; digestion; cell differentiation; response to iron ion; response to estradiol stimulus
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While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

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