catalog number :
MBS2019388
products type :
ELISA Kit
products full name :
Trefoil Factor 3, Intestinal (TFF3) ELISA Kit
products short name :
Trefoil Factor 3, Intestinal (TFF3)
products name syn :
HITF; ITF3; TFI; HP1.B
other names :
trefoil factor 3; Trefoil factor 3; trefoil factor 3; trefoil factor 3 (intestinal); Intestinal trefoil factor; hITF; Polypeptide P1.B; hP1.B
products gene name :
TFF3
other gene names :
TFF3; TFF3; ITF; P1B; TFI; ITF; TFI; hITF; hP1.B
uniprot entry name :
TFF3_HUMAN
specificity :
This assay has high sensitivity and excellent specificity for detection of TFF3. No significant cross-reactivity or interference between TFF3 and analogues was observed.
storage stability :
For unopened kit: All the reagents should be kept according to the labels on vials. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20 degree C upon receipt while the others should be at 4 degree C. For opened kit: When the kit is opened, the remaining reagents still need to be stored according to the above storage condition. Besides, please return the unused wells to the foil pouch containing the desiccant pack, and reseal along entire edge of zip-seal. 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.
other info1 :
Samples: Human serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. Assay Type: Sandwich. Detection Range: 62.5-4,000pg/mL. The standard curve concentrations used for the ELISA's were 4,000pg/mL, 2,000pg/mL, 1,000pg/mL, 500pg/mL, 250pg/mL, 125pg/mL, 62.5pg/mL. Sensitivity: 25.3pg/mL.
other info2 :
Intra-assay Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level TFF3 were tested 20 times on one plate, respectively. Intra-Assay: CV<10%. Inter-assay Precision: Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level TFF3 were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100. Inter-Assay: CV<12%
products description :
Intended Uses: The kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of TFF3 in human serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. Principle of the Assay The microtiter plate provided in this kit has been pre-coated with an antibody specific to TFF3. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to TFF3. 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 TFF3, 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 TFF3 in the samples is then determined by comparing the O.D. of the samples to the standard curve.
ncbi acc num :
NP_003217.3
ncbi gb acc num :
NM_003226.3
ncbi mol weight :
8,641 Da
ncbi pathways :
HIF-1-alpha Transcription Factor Network Pathway (138045); IL4-mediated Signaling Events Pathway (137933)
ncbi summary :
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. This gene is expressed in goblet cells of the intestines and colon. This gene and two other related trefoil family member genes are found in a cluster on chromosome 21. [provided by RefSeq, Jul 2008]
uniprot summary :
TFF3: Involved in the maintenance and repair of the intestinal mucosa. Promotes the mobility of epithelial cells in healing processes (motogen). Protein type: Secreted; Secreted, signal peptide. Chromosomal Location of Human Ortholog: 21q22.3. Cellular Component: proteinaceous extracellular matrix; extracellular region; secretory granule. Biological Process: response to peptide hormone stimulus; digestion; defense response
size4 :
10x96-Strip-Wells