Intrinsic Factor Protein, Human, Recombinant (His)

Gastric intrinsic factor, also known as GIF, belongs to the of the cobalamin transport protein family. It is a glycoprotein produced by the parietal cells of the stomach. Gastric intrinsic factor plays a key role in the absorption of vitamin B12 on in the small intestine. Vitamin B12 bounds to haptocorrin after entry into the stomach. The resulting complex enters the duodenum, where pancreatic enzymes digest haptocorrin. In the less acidic environment of the small intestine, B12 can then bind to gastric intrinsic factor. This new complex travels to the ileum, where special epithelial cells endocytose them. Inside the cell, B12 dissociates once again and binds to another protein, transcobalamin II. The new complex can exit the epithelial cells to enter the liver.

规格	价格/CNY		数量
50 μg	￥ 3,820	现货
100 μg	￥ 5,920	5日内发货
200 μg	￥ 9,160	5日内发货
500 μg	￥ 16,280	5日内发货

规格

价格/CNY

货期

数量

50 μg

￥ 3,820

现货

100 μg

￥ 5,920

5日内发货

200 μg

￥ 9,160

5日内发货

500 μg

￥ 16,280

5日内发货

生物活性

Testing in progress

产品描述

种属	Human
表达系统	HEK293
标签	His
蛋白编号	P27352-1
别名	IF, IFMH, gastric intrinsic factor (vitamin B synthesis), INF, TCN3
蛋白构建	A DNA sequence encoding the human GIF (P27352-1) (Met1-Tyr417) was expressed with a polyhistidine tag at the C-terminus.
蛋白纯度	> 95 % as determined by SDS-PAGE
分子量	Approxiamtely 44.8 kDa

内毒素	< 1.0 EU per μg of the protein as determined by the LAL method.
缓冲液	Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
复溶方法	A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
存储	Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
运输方式	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.
研究背景	Gastric intrinsic factor, also known as GIF, belongs to the of the cobalamin transport protein family. It is a glycoprotein produced by the parietal cells of the stomach. Gastric intrinsic factor plays a key role in the absorption of vitamin B12 on in the small intestine. Vitamin B12 bounds to haptocorrin after entry into the stomach. The resulting complex enters the duodenum, where pancreatic enzymes digest haptocorrin. In the less acidic environment of the small intestine, B12 can then bind to gastric intrinsic factor. This new complex travels to the ileum, where special epithelial cells endocytose them. Inside the cell, B12 dissociates once again and binds to another protein, transcobalamin II. The new complex can exit the epithelial cells to enter the liver.