Human CellExp™ GFER/HPO/ALR, human recombinant

Biomolecule/Target: GFER

Synonyms: GFER, ALR, ERV1, HERV1, HPO, HPO1, HPO2, HSS, Hepatopoietin

Alternates names: GFER, ALR, ERV1, HERV1, HPO, HPO1, HPO2, HSS, Hepatopoietin

Taglines: Acts as an autocrine hepatotrophic growth factor

Taglines: USA

Country of Animal Origin: USA

NCBI Gene ID #.: 2671

NCBI Gene Symbol: GFER

Gene Source: Human

Accession #: P55789

Recombinant: Yes

Source: HEK 293 cells

Purity by SDS-PAGE #: ≥92%

Assay: SDS-PAGE

Purity: N/A

Assay #2: N/A

Endotoxin Level: < 0.1 ng/μg of protein (<1EU/μg) by LAL method

Activity (Specifications/test method): N/A

Biological activity: N/A

Results: N/A

Binding Capacity: N/A

Unit Definition: N/A

Molecular Weight: Calculated MW of 15.2 kDa with no tag. The predicted N-terminus is Met 81. DTT-reduced protein migrates as 16.0 kDa.

Concentration: N/A

Appearance: Lyophilized powder

Physical form description: Lyophilized from 0.22 μm filtered solution in 20 mM Tris, 100 mM NaCl, pH 8.0. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 100 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

Background Information: Growth factor, augmenter of liver regeneration (GFER) is also known as FAD-linked sulfhydryl oxidase ALR, which belongs to the Erv1/ALR family of proteins. This family can be found in higher and lower eukaryotes. There are two isoform of GFER: Isoform 1 and isoform 2. Isoform 2 missing 1 – 80 aa. Isoform 1 is mainly located in mitochondrion intermembrane space, while Isoform 2 is secreted to cytoplasm. Isoform 1 of GFER regenerates the redox-active disulfide bonds in CHCHD4/MIA40, a chaperone essential for disulfide bond formation and protein folding in the mitochondrial intermembrane space. The reduced form of CHCHD4/MIA40 forms a transient intermolecular disulfide bridge with GFER/ERV1, resulting in regeneration of the essential disulfide bonds in CHCHD4/MIA40, while GFER/ERV1 becomes re-oxidized by donating electrons to cytochrome c or molecular oxygen. The isoform 2 of GFER may act as an autocrine hepatotrophic growth factor promoting liver regeneration.

Amino acid sequence: N/A

Handling: Centrifuge the vial prior to opening.

Usage: For Research Use Only! Not to be used in humans