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Species of Origin
Human
Expression system
Escherichia coli
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Affinity Tag
His Tag (C-term)
Buffer
Lyophilized from a 0.2 µm filtered solution of PBS, pH 8.0.
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Purity
>98% as determined by SDS-PAGE analysis.
Molecular weight
The protein has a calculated MW of 46.23 kDa.
The protein migrates as 43 kDa under reducing condition (SDS-PAGE analysis). -
Endotoxin level
<0.1 EU per 1 μg of the protein by the LAL method.
Form
Lyophilized
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Specifications
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Background
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Background
Human Gastric intrinsic factor (GIF) is an intrinsic factor of the eukaryotic cobalamin family. Gastric intrinsic factor is a 44 kDa protein containing 380 amino acid residues. It is secreted from the parietal cells in gastric mucosa. Gastric intrinsic factor plays a major role in absorption and transportation of cobalamin and Cbl. It could form the comprised with Vit.B12 that avoid the destroy of Vit.B12.
Synonyms
Cobalamin binding intrinsic factor, Gastric intrinsic factor, Intrinsic factor
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Uniprot ID
#P27352
Sequence Note
Met1-Tyr417
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Instruction
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Reconstitution
It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
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Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
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Image
![SDS-PAGE analysis of recombinant human GIF.]()
SDS-PAGE analysis of recombinant human GIF.
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Publication
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Datasheet & Documents
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Disclaimer：For Research Use or Further Manufacturing Only.
