Human TFF1 ELISA Kit
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Datasheet

Human TFF1 ELISA Kit

KOA0724
1 Kit
ELISA
Human
15.6 pg/ml - 1000 pg/ml
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Description

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.

Application Note

Useful in Sandwich ELISA for Quantitative Detection of Antigen. Aliquot 0.1ml per well of the 1000pg/ml, 500pg/ml, 250pg/ml, 125pg/ml, 62.5pg/ml, 31.2pg/ml, 15.6pg/ml human TFF1 standard solutions into the precoated 96-well plate. Add 0.1ml of the sample diluent buffer into the control well (Zero well). Add 0.1ml of each properly diluted sample of human cell culture supernates, serum or plasma(heparin, EDTA) to each empty well. It is recommended that each human TFF1 standard solution and each sample be measured in duplicate.

Purity/Specificity

Natural and recombinant human TFF1. There is no detectable cross-reactivity with other relevant proteins.

Human TFF1 AccuSignal ELISA Kit - KOA0724
BCEI, Breast cancer estrogen inducible protein, Breast cancer estrogen inducible sequence, Breast cancer estrogen-inducible protein, D21S21, Gastrointestinal trefoil protein, Gastrointestinal trefoil protein pS2, hP1.A, HP1A, HPS 2, HPS2, pNR 2, PNR-2, pNR2, Polypeptide P1.A, Protein pS2, PS 2, pS2, pS2 protein, TFF 1, TFF1, TFF1_HUMAN, Trefoil factor 1
TFF1
ELISA
Human
Expression system for standard: E.coli; Immunogen sequence: E25-F84
ELISA Kit
15.6 pg/ml - 1000 pg/ml
<10 pg/ml
Heparin Sodium
Wet Ice
Store vials at 4°C prior to opening. Centrifuge product if not completely clear after standing at room temperature. This product is stable for 6 months at 4°C as an undiluted liquid. Dilute only prior to immediate use. For extended storage freeze at -20°C or below for 12 months. Avoid cycles of freezing and thawing.
See kit insert for complete instructions.

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This product is for research use only and is not intended for therapeutic or diagnostic applications. Please contact a technical service representative for more information. All products of animal origin manufactured by Rockland Immunochemicals are derived from starting materials of North American origin. Collection was performed in United States Department of Agriculture (USDA) inspected facilities and all materials have been inspected and certified to be free of disease and suitable for exportation. All properties listed are typical characteristics and are not specifications. All suggestions and data are offered in good faith but without guarantee as conditions and methods of use of our products are beyond our control. All claims must be made within 30 days following the date of delivery. The prospective user must determine the suitability of our materials before adopting them on a commercial scale. Suggested uses of our products are not recommendations to use our products in violation of any patent or as a license under any patent of Rockland Immunochemicals, Inc. If you require a commercial license to use this material and do not have one, then return this material, unopened to: Rockland Inc., P.O. BOX 5199, Limerick, Pennsylvania, USA.