Human TFF3 Antibody
R&D Systems, part of Bio-Techne | Catalog # AF4407
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Western Blot
Cited:
ELISA Development
Label
Unconjugated
Antibody Source
Polyclonal Sheep IgG
Product Specifications
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human TFF3
Ala21-Phe80
Accession # Q07654
Ala21-Phe80
Accession # Q07654
Specificity
Detects human Trefoil Factor 3 (TFF3) in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross-reactivity with recombinant human (rh) TFF1 and rhTFF2 is observed.
Clonality
Polyclonal
Host
Sheep
Isotype
IgG
Scientific Data Images for Human TFF3 Antibody
Detection of Human TFF3 by Western Blot.
Western blot shows lysates of human pancreas tissue and KATO-III human gastric carcinoma cell line. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human TFF3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4407) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for TFF3 at approximately 12 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Applications for Human TFF3 Antibody
Application
Recommended Usage
Western Blot
1 µg/mL
Sample: Human pancreas tissue and KATO‑III human gastric carcinoma cell line
Sample: Human pancreas tissue and KATO‑III human gastric carcinoma cell line
Please Note: Optimal dilutions of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: TFF3
TFF3 (Trefoil factor 3; also hP1.B and intestinal trefoil factor) is a 7 kDa member of the trefoil factor family of protease-resistant peptides. It is expressed by multiple epithelial cell types, acts in an autocrine or paracrine manner and contributes to epithelial cell migration and survival. Mature human TFF3 is 59 amino acids (aa) in length (aa 22-80). It contains one P (or trefoil) domain that is characterized by the presence of three cysteine bond-mediated loops (aa 30-72). Human TFF3 exists as both a monomer and disulfide-linked dimer. There are three potential isoform variants. One shows an alternate start site at Met8, a second shows a 50 aa N‑terminal extension and a third shows a 109 aa substitution for aa 29-80. Over aa 21-80, human TFF3 shares 77%, 68%, and 72% aa identity with mouse, canine, and rat TFF3, respectively.
Long Name
Trefoil Factor 3
Alternate Names
ITF, TFI
Gene Symbol
TFF3
UniProt
Additional TFF3 Products
Product Documents for Human TFF3 Antibody
Product Specific Notices for Human TFF3 Antibody
For research use only
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