The Mouse Monoclonal anti-TFF1 antibody (Clone TFF1-2133) (ABIN7882562) specifically detects TFF1 in IF, IHC (p) and FACS.
The antibody is reactive with Human samples.
The optimal dilution of the pS2 antibody for each application should be determined by the researcher.
1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.
Restrictions
For Research Use only
Format
Liquid
Concentration
1 mg/mL
Buffer
1 mg/mL in 1X PBS, BSA free, sodium azide free
Preservative
Azide free
Storage
4 °C,-20 °C
Storage Comment
Store the pS2 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Target
TFF1
(Trefoil Factor 1 (TFF1))
Alternative Name
pS2
Background
It recognizes a polypeptide of 6.5 kDa, 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.