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pS2 / pNR-2 / TFF1 Monoclonal Mouse Antibody (GE2)

This antibody recognizes a polypeptide of 6.5 kDa, identified as pS2 estrogen-regulated protein.

Product Attributes

Antibody number

0677

Reactivity (target)

pS2

Antibody type

Primary

Host species

Mouse

Clonality

Monoclonal

Clone

GE2

Isotype

IgG1, kappa

Molecular weight

6.5 kDa

Synonyms

BCEI, Breast Cancer Estrogen Inducible Protein, Gastrointestinal Trefoil Protein, Gastrointestinal trefoil protein pS2, HP1A, HPS2, pNR2, TFF1, Trefoil Factor 1

Human gene symbol

TFF1

Entrez gene ID

7031

SwissProt

P04155

Unigene

162807

Immunogen

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

Cellular localization

Cytoplasmic

Species reactivity

Human, Cynomolgus monkey

Applications

Immunofluorescence, Immunohistology (formalin), Flow cytometry

Application notes

Immunohistology (formalin), Staining of formalin-fixed tissues requires boiling tissue sections in 10 mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes, Immunofluorescence 0.5-1 ug/mL, Flow Cytometry 0.5-1 ug/million cells/0.1 mL, Optimal dilution for a specific application should be determined by user

Positive control

Breast or Ovarian carcinoma

Shipping condition

Room temperature

Storage Conditions

Store at 2 to 8 °C, Protect fluorescent conjugates from light, Note: store BSA-free antibodies at -10 to -35 °C

Shelf life

Guaranteed for at least 24 months from date of receipt when stored as recommended

Regulatory status

For research use only (RUO)

Research areas

Endocrinology

Cell/tissue expression

Epithelial cells

Tumor expression

Breast cancer

Certificates of Analysis (COA)

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Product Description

This antibody recognizes a polypeptide of 6.5 kDa, 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.

Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

Stock status: Because Biotium offers a large number of antibody and conjugation options, primary antibody conjugates may be made to order. Typical lead times are up to one week for CF® dye and biotin conjugates, and up to 2-3 weeks for fluorescent protein and enzyme conjugates. Please email order@biotium.com to inquire about stock status and lead times before placing your order.

 Catalog number key for antibody number 0677, Anti-pS2 (GE2) The prefix indicates conjugation, followed by the antibody number and size suffix.

Antibody # prefixConjugationEx/EmConcentrationStorage Buffer
BNC04CF®405S404/431 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC05CF®405M408/452 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC88CF®488A490/515 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC43CF®543541/560 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC55CF®555555/565 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC68CF®568562/583 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC94CF®594593/614 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC40CF®640R642/662 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC47CF®647650/665 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC61CF®660R663/682 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC80CF®680681/698 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC81CF®680R680/701 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC70CF®770770/797 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCRR-PE (PE)496, 546, 565/578 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCAAPC650/660 nnm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCPPerCP482/677 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCBBiotinN/A0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCAPAlkaline PhosphataseN/A0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCHHorseradish PeroxidaseN/A0.1 mg/mL PBS, 0.05% BSA, no azide
BNUBPurified, with BSA N/A0.2 mg/mL PBS, 0.05% BSA, 0.05% azide
BNUMPurified, BSA-freeN/A1 mg/mL PBS, no BSA, no azide

References

Williams R, et. al. Human Pathology, 1996, 27(12):1259-66

 

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