Human TFF1/Ps2 PicoKine™ ELISA Kit
|Size||96wells/kit, with removable strips.|
|Sample Type||cell culture supernates, cell lysates, serum and plasma (heparin, EDTA).|
|Product Name||Human TFF1/Ps2 PicoKine™ ELISA Kit|
|Storage & Handling||Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)|
|Size||96wells/kit, with removable strips.|
|Description||Sandwich High Sensitivity ELISA kit for Quantitative Detection of Human TFF1. 96wells/kit, with removable strips.|
|Cite This Product||Human TFF1/Ps2 PicoKine™ ELISA Kit (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1232)|
|Sample Type||cell culture supernates, cell lysates, serum and plasma (heparin, EDTA)..
Anticoagulant(s): heparin or EDTA
*The recommended anticoagulants are proven to not block the antibody binding sites on the target antigen. Please do not collect blood sample with other anticoagulants thata are not specified above or contact us to check for feasibility.
|Immunogen||Expression system for standard: E.coli; Immunogen sequence: E25-F84|
|Cross Reactivity||There is no detectable cross-reactivity with other relevant proteins.|
|EK1232-CAP||96-well plate precoated with anti-Human TFF1 antibody||1|
|EK1232-ST||lyophilized recombinant Human TFF1 standard||1ng/tube|
|EK1232-DA||biotinylated anti-Human TFF1 antibody||130ul(dilution 1:100)|
|AR1103||Avidin-Biotin-Peroxidase Complex(ABC)||130ul(dilution 1:100)|
|AR1106-1||sample diluent buffer||30ml|
|AR1106-2||antibody diluent buffer||12ml|
|AR1106-3||ABC diluent buffer||12ml|
|AR1104||TMB color developing agent||10ml|
|AR1105||TMB stop solution||10ml|
Materials Required But Not Provided
- Microplate reader in standard size.
- Automated plate washer.
- Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
- Clean tubes and Eppendorf tubes.
- Washing buffer (neutral PBS or TBS).
- Preparation of 0.01M TBS: Add 1.2g Tris, 8.5g NaCl; 450μl of purified acetic acid or 700μl of concentrated hydrochloric acid to 1000ml H2
- Preparation of 0.01 M PBS: Add 8.5g sodium chloride, 1.4g Na O and adjust pH to 7.2-7.
Typical Data Obtained from Human TFF1/Ps2 PicoKine™ ELISA Kit
(TMB reaction incubate at 37°C for 25-30min)
Intra/Inter Assay Precision
|Intra-Assay Precision||Inter-Assay Precision|
Three samples with differing target protein concentrations were assayed using four different lots to measure the CV% lot to lot variance.
To assay reproducibility, three samples with differing target protein concentrations were assayed using four different lots.
|Lots||Lot1 (pg/ml)||Lot2 (pg/ml)||Lot3 (pg/ml)||Lot4 (pg/ml)||Mean (pg/ml)||Standard Deviation||CV (%)|
*The typical data is obtained from Boster's internal QC result and for reference only. It may differ from the lab test results of the end users. It is more important that the user's lab test results reflect the same linearity demonstrated in the typical data than achieving exactly the same O.D. values.
Protein Target Info (Source: Uniprot.org)
|Protein Name||Trefoil factor 1|
|Tissue Specificity||Found in stomach, with highest levels in the upper gastric mucosal cells (at protein level). Detected in goblet cells of the small and large intestine and rectum, small submucosal glands in the esophagus, mucous acini of the sublingual gland, submucosal glands of the trachea, and epithelial cells lining the exocrine pancreatic ducts but not in the remainder of the pancreas (at protein level). Scattered expression is detected in the epithelial cells of the gallbladder and submucosal glands of the vagina, and weak expression is observed in the bronchial goblet cells of the pseudostratified epithelia in the respiratory system (at protein level). Detected in urine (at protein level). Strongly expressed in breast cancer but at low levels in normal mammary tissue. It is regulated by estrogen in MCF-7 cells. Strong expression found in normal gastric mucosa and in the regenerative tissues surrounding ulcerous lesions of gastrointestinal tract, but lower expression found in gastric cancer (at protein level). .|
|Alternative Names||Trefoil factor 1;Breast cancer estrogen-inducible protein;PNR-2;Polypeptide P1.A;hP1.A;Protein pS2;TFF1;BCEI, PS2;|
|Subcellular Localization||Secreted .|
|Molecular Weight||9150 MW|
*if product is indicated to react with multiple species, protein info is based on the human gene.
|Protein Function||Stabilizer of the mucous gel overlying the gastrointestinal mucosa that provides a physical barrier against various noxious agents. May inhibit the growth of calcium oxalate crystals in urine. .|
|Background||TFF1(Trefoil factor 1), also known as pS2, is a protein that in humans is encoded by the TFF1 gene. 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. It is found that TFF1 in normal human urine inhibited the growth of calcium oxalate crystals. Urinary TFF1 showed an inhibitory potency similar to that of nephrocalcin, and inhibition was dose dependent and inhibited by TFF1 antisera, particularly by antisera directed to the TFF1 C terminus. Concentrations and relative amounts of TFF1 in the urine of patients with idiopathic calcium oxalate kidney stones were significantly less than those found in controls. 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.|
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- Review by Lu Yang
"Competitively priced and worked"
--Lu Yang, UCSD, CMMW, GRADUATE STUDENT
Applications Protein level screen Sample Cell culture media from MCF7 cells Detection --
"The TFF1 ELISA kit from Boster was competitively priced and worked with cell culture media taken from MCF7 cells, a human mammary carcinoma which is well known for overexpression of the TFF1 protein. The kit is very sensitive, detecting TFF1 protein at levels of 10pg/mL. The kit is saturated about 1mg/mL, so in my case, a 1 to 100 dilution of cell culture media was needed in order to be in the linear range of the assay. Good ELISA kit for human TFF1 protein. Worked as advertised."
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