TFF1 ELISA kit (Human)

SKU: SEB049Hu

Size: 96Tests

# of Times Cited in literature: 4

Prepare Time: 1-3 days(please inquire for mutiple units)

Target Name: TFF1

Target Full Name: Trefoil Factor 1

Alternative Names: BCEI; HP1.A; HPS2; PS2; PNR2; Breast Cancer,Estrogen-Inducible Sequence Expressed In; Breast cancer estrogen-inducible protein; Polypeptide P1.A

Target Species: Human

Uniprot: P04155

Gene ID: 7031

Featured Series: SE kit

Featured Series Function: Detects protein (regular version)

Specificity: Reactive with Human TFF1 / Trefoil Factor 1

Method: Colormetric

Detection principle: Double-antibody Sandwich

Detection range: 0.156-10ng/mL

Sensitivity: 0.056ng/mL

Assay Time: 3h

Sample Size: 100uL

Recommended/Predicted Sample Types: Serum, Plasma, Tissue Homogenates, Cell Lysates, Cell Culture Supernates and other Biological Fluids

Assay Precision: Intra-Assay: CV<10%, Inter-Assay: CV<12%

Reproducibility test menthod: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Trefoil Factor 1 (TFF1) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Trefoil Factor 1 (TFF1) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100

Storage: 4°C for 1 month/ -20°C for long-term(One year within shelf life)

Shelf-life: 12 months

Specificity: This assay has high sensitivity and excellent specificity for detection of Trefoil Factor 1 (TFF1). No significant cross-reactivity or interference between Trefoil Factor 1 (TFF1) and analogues was observed.

Stability: The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Assay procedure summary: 1. Prepare all reagents, samples and standards; 2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C; 3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C; 4. Aspirate and wash 3 times; 5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C; 6. Aspirate and wash 5 times; 7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C; 8. Add 50µL Stop Solution. Read at 450nm immediately.

Test principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Trefoil Factor 1 (TFF1). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Trefoil Factor 1 (TFF1). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Trefoil Factor 1 (TFF1), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Trefoil Factor 1 (TFF1) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Research Area: Tumor immunity;

References Citing This Product: Serum trefoil factor 3 is a promising non-invasive biomarker for gastric cancer screening: A monocentric cohort study in China

miR218-5p regulates the proliferation of gastric cancer cells by targeting TFF1 in an Erk1/2-dependent manner

Identification of a Three-Biomarker Panel in Urine for Early Detection of Pancreatic Adenocarcinoma

miR-632 promotes gastric cancer progression by accelerating angiogenesis in a TFF1-dependent manner

Human Synovia Contains Trefoil Factor Family (TFF) Peptides 1–3 Although Synovial Membrane Only Produces TFF3: Implications in Osteoarthritis and Rheumatoid …

A combination of urinary biomarker panel and PancRISK score for earlier detection of pancreatic cancer: A case¨Ccontrol study

Untersuchungen der Trefoil factor family Peptide 1-3 in humaner Synovialfl¨¹ssigkeit und Synovialmembran und deren Bedeutung bei Arthrose und?¡­