"GIF" Related Products

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Recombinant Human GIF, His-tagged

Cat.No.: GIF-1288H
Product Overview: Recombinant Human GIF, a glycosylated, polypeptide chain fussed with hexa-histidine tag at C-terminal was expressed in Sf9 Insect Cells.
Description: Intrinsic Factor is a member of the cobalamin transport protein family. It encodes a glycoprotein secreted by parietal cells of the gastric mucosa and is required for adequate absorption of vitamin B12 in the terminal ileum. Vitamin B12 is essential for erythrocyte maturation and mutations in the Intrinsic Factor may lead to congenital pernicious anemia. Upon entry into the stomach, vitamin B12 binds to one of two B12 binding proteins present in the gastric fluid. In the less acidic environment of the small intestine, these proteins dissociate from the vitamin, allowing it to bind to intrinsic factor and enter the portal circulation through a receptor in the ileal mucosa specific for the B12-intrinsic factor complex.
Source: Sf9 Insect Cells
Species: Human
Tag: His
Form: The protein solution (0.7mg/ml) contains 20mM HEPES pH-8, 100mM NaCl, 20% Glycerol.
Molecular Mass: 55,000 Dalton
Purity: Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Stability: Store at 4 centigrade if entire vial will be used within 2-4 weeks. Store, frozen at -20 centigrade for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
Gene Name: GIF gastric intrinsic factor (vitamin B synthesis) [ Homo sapiens ]
Official Symbol: GIF
Synonyms: IF; INF; IFMH; TCN3; gastric intrinsic factor; intrinsic factor
Gene ID: 2694
mRNA Refseq: NM_005142
Protein Refseq: NP_005133
MIM: 609342
UniProt ID: P27352
Chromosome Location: 11q13
Pathway: Cobalamin (Cbl, vitamin B12) transport and metabolism, organism-specific biosystem; Defective AMN causes hereditary megaloblastic anemia 1, organism-specific biosystem; Defects in cobalamin (B12) metabolism, organism-specific biosystem
Function: cobalamin binding

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