Transferrin Protein, Sus scrofa (Pig), Recombinant (His)

Transferrin Protein, Sus scrofa (Pig), Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 78.3 kDa and the accession number is A0A8D0PY93.

Transferrin Protein, Sus scrofa (Pig), Recombinant (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 161,000

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説明	Transferrin Protein, Sus scrofa (Pig), Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 78.3 kDa and the accession number is A0A8D0PY93.

Species	Sus scrofa (Pig)
Expression Host	HEK293 Cells
Tag	C-His
Accession Number	A0A8D0PY93
別名	transferrin
Construction	The pig (Sus scrofa) transferrin (NP_001231582.1) (Met 1-Thr 715) was fused with the a polyhistidine tag at the C-terminus.
Protein Purity	> 90 % as determined by SDS-PAGE
分子量	78.3 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Transferrin is a glycoprotein with an approximate molecular weight of 76.5 kDa. This glycoprotein is thought to have been created as a result of an ancient gene duplication event that led to generation of homologous C and N-terminal domains each of which binds one ion of ferric iron. The function of Transferrin is to transport iron from the intestine, reticuloendothelial system, and liver parenchymal cells to all proliferating cells in the body. This protein may also have a physiologic role as granulocyte / pollen-binding protein (GPBP) involved in the removal of certain organic matter and allergens from serum. Transferrins are iron binding transport proteins that bind Fe3+ion in association with the binding of an anion, usually bicarbonate. This transferrin binds only one Fe3+ion per protein molecule. Transports iron ions from the hemolymph into the eggs during the vitellogenic stage. Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate. It is responsible for the transport of iron from sites of absorption and heme degradation to those of storage and utilization. Serum transferrin may also have a further role in stimulating cell proliferation. When a transferrin loaded with iron encounters with a transferring receptor on cell surface, transferring binds to it and, as a consequence, is transported into the cell in a visicle by receptor-mediated endocytosis. The PH is reduced by hydrogen iron pumps. The lower pH causes transferrin to release its iron ions. The receptor is then transported through the endocytic cycle back to the cell surface, ready for another round of iron uptake. Each transferrin molecule has the ability to carry two iron ions in the ferric form.

参考文献

1. Ponka P,et al.(1998) Function and regulation of transferrin and ferritin. Semin Hematol. 35(1): 35-54. 2. Wagner E,et al.(1990) Transferrin-polycation conjugates as carriers for DNA uptake into cells. Proc Natl Acad Sci. 87(9): 3410-4. 3. Cheng Y,et al.(2004) Structure of the human transferrin receptor-transferrin complex. Cell. 116 (4): 565-76.

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Transferrin Protein, Sus scrofa (Pig), Recombinant (His)

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