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 40aa 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.
Applications:Suitable for use in ELISA and Western Blot.
Other applications not tested.
Recommended Dilution:ELISA: 0.1-0.5ug/mlWestern Blot: 0.1-0.5ug/mlOptimal dilutions to be determined by the researcher.
Storage and Stability:Lyophilized powder may be stored at -20°C.
Stable for 12 months after receipt at -20°C.
Reconstitute with sterile ddH2O.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Reconstituted product is stable for 12 months at -20°C.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Further dilutions can be made in assay buffer.
仕様
Size:100ug
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a lyophilized powder from PBS, 5% BSA, 0.05% sodium azide. Reconstitute with 200ul sterile dH2O.
Specificity:Recognizes human TFF1.
Isotype:IgG
Calc Applications Abbrev:E WB
Calc Crossreactivity:Hu
Immunogen:Recombinant protein corresponding to human TFF1 expressed in E. coli. (Position: E25-F84). Species sequence homology: mouse (67%) and rat (69%)