TFF1 Protein, Human, Recombinant (hFc)

Breast cancer (BC) is the most common cancer in women and the second leading cause of their cancer death. Establishing an accurate BC prognosis is very difficult because of its heterogeneity. Elevated TFF1 levels in serum were associated with development of BC, TFF1 expression was upregulated in BC compared to the healthy breast tissue.That expression of TFF1 was related to ER status of BC and that expression of TFF1 was lower in TNBC than in non-TNBC.

Pack Size	Availability	Price/USD
100 μg	5 days	$ 418.00
500 μg	5 days	$ 1,670.00
1 mg	5 days	$ 2,800.00

Pack Size

Availability

Price/USD

Quantity

100 μg

5 days

$ 418.00

500 μg

5 days

$ 1,670.00

1 mg

5 days

$ 2,800.00

Description

Species	Human
Expression System	HEK293
Tag	C-hFc
Accession Number	P04155
Synonyms	Polypeptide P1.A, Trefoil factor 1, Bcei, HP1.A, pNR-2, PS2, HPS2, TFF1, D21S21
Construction	Recombinant Human TFF1 Protein is expressed from HEK293 with hFc tag at the C-Terminus. It contains Glu25-Phe84.[Accession \|P04155]
Protein Purity	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
Molecular Weight	The protein has a predicted MW of 33.3 kDa. Due to glycosylation, the protein migrates to 40-45 kDa based on Tris-Bis PAGE result.

Endotoxin	Less than 1EU per μg by the LAL method.
Formulation	Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability & Storage	-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	Breast cancer (BC) is the most common cancer in women and the second leading cause of their cancer death. Establishing an accurate BC prognosis is very difficult because of its heterogeneity. Elevated TFF1 levels in serum were associated with development of BC, TFF1 expression was upregulated in BC compared to the healthy breast tissue.That expression of TFF1 was related to ER status of BC and that expression of TFF1 was lower in TNBC than in non-TNBC.