Human TFF1 / pS2

Mouse

Human (tested or 100% immunogen sequence identity)

IgG1,k Monoclonal

SPM573

Unconjugated

Protein G purified

Unmodified. Also available Azide-free, BSA-free.

Amino acids 57-84 (CFDDTVRGVPWCFYPNTIDVPPEEECEF, aa 57-84 of P04155) from the human protein were used as the immunogen for this pS2 antibody. Percent identity by BLAST analysis: Human (100%); Mouse (68%); Rat (64%).

aa57-84

Human TFF1 / PS2

• IHC
• IHC - Paraffin (0.5 - 1 µg/ml)
• Immunofluorescence (0.5 - 1 µg/ml)
• Flow Cytometry (0.5 - 1 µg/10E6 cells)

It recognizes a polypeptide of 6.5kDa, identified as pS2 estrogen-regulated 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. It 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. The optimal dilution of the pS2 antibody for each application should be determined by the researcher. Staining of formalin-fixed tissues requires boiling tissue sections in 10mM Citrate Buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes.

1X PBS, 0.1 mg/ml BSA, 0.05% sodium azide

Store at 2°C to 8°C.

For research use only. Intended for use by laboratory professionals.

This antibody carries the LSBio 100% Guarantee.

Uniprot: P04155 NCBI: NM_003225 NP_003216.1