United States (US)

TFF1 antibody [SPM573]

Anti-TFF1 antibody [SPM573] used in IHC (Paraffin sections) (IHC-P). GTX35099

Cat No. GTX35099

Host Mouse
Clonality Monoclonal
Clone Name SPM573
Isotype IgG1
Application ICC/IF, IHC-P
Reactivity Human, Cynomolgus monkey

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
ICC/IF 0.5-1ug/ml
IHC-P 0.5-1ug/ml for 30 minutes at RT

Note :

Boiling tissue sections in 10mM Citrate Buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes

Not tested in other applications.

Calculated MW

9 kDa. ( Note )


It recognizes a polypeptide of 6.5kDa, identified as pS2 estrogen-regulated protein. Its epitope is localized between aa57-84 of human pS2 protein. pS2 is a trefoil peptide. Trefoil peptides are protease resistant molecules secreted throughout the gut that play a role in mucosal healing. These peptides contain three intra-chain disulfide bonds, forming the trefoil motif, or P-domain. pS2 is known to form dimers and this dimerization is thought to play a role in its protective and healing properties. About 60% of breast carcinomas are positive for pS2. Staining is cytoplasmic, often with localization to the Golgi apparatus. pS2 is shown to be localized in normal stomach mucosa, gastric fluid, goblet cells in the colon and small intestine, and in ulcerations of the gastrointestinal tract. Several studies have shown that pS2 is primarily expressed in estrogen receptor-positive breast tumors and it may define a subset of estrogen-dependent tumors that displays an increased likelihood of response to endocrine therapy.




Prepared in 10mM PBS with 0.05% BSA and 0.05% azide.


Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.

Antigen Species



Synthetic peptide of 28 amino acid residues corresponding to CFDDTVRGVPWCFYPNTIDVPPEEECEF (aa57-84) from the C-terminus of human pS2.


Ab purified from Bioreactor Concentrate by Protein A/G




For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.


Trefoil Factor 1,Bcei,D21S21,Hp1.A,Hps2,Pnr-2,Ps2,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]


Anti-TFF1 antibody [SPM573] used in IHC (Paraffin sections) (IHC-P). GTX35099

GTX35099 IHC-P Image

Formalin-fixed, paraffin-embedded human Breast Carcinoma stained with pS2 Monoclonal Antibody (SPM573).

Package List Price ($)
$ 329