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Human Hemojuvelin / HFE2 Protein (His Tag)

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HFE2Protein Product Information
Synonym:HFE2A, HJV, JH, RGMC
Protein Construction:A DNA sequence encoding the mature form of human HFE2 isoform a (Q6ZVN8-1) (Met 1-Ser 399) was fused with a polyhistidine tag at the C-terminus.
Expressed Host:Baculovirus-Insect Cells
Form & Shipping: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.
HFE2Protein QC Testing
Purity:> 95 % as determined by SDS-PAGE
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Gln 36
Molecule Mass:The secreted recombinant human HFE2 consists of 374 amino acids and predicts a molecular mass of 40 kDa. As a result of intracellular cleavage, the apparent molecular mass of the protein is approximately 20, 34 and 44 KDa in SDS-PAGE under reducing conditions, corresponding to the N-terminal, C-terminal portions and the full-length respectively.
Formulation:Lyophilized from sterile PBS, 500mM NaCl, pH 7.0, 10% gly
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
HFE2Protein Usage Guide
Storage: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.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

Hemojuvelin, also known as HFE2, is a membrane-bound and soluble protein which belongs to the repulsive guidance molecule (RGM) family. It is known that RGMs function through Neogenin, a homologue of the Netrin receptor deleted in colon cancer. In mammals, RGM family consists of three glycoproteins which have discrete expression patterns and functions (RGM-A, RGM-B, and RGM-C). Hemojuvelin is expressed in adult and fetal liver, heart, and skeletal muscle. Hemojuvelin acts as a bone morphogenetic protein (BMP) coreceptor. Enhancement of BMP signaling regulates hepcidin (HAMP) expression and iron metabolism. It plays a key role in iron metabolism. Hemojuvelin represents the cellular receptor for hepcidin. It may be a component of the signaling pathway which activates hepcidin or it may act as a modulator of hepcidin expression. Defects in hemojuvelin are the cause of hemochromatosis type 2A, also known as juvenile hemochromatosis (JH).

  • Papanikolaou G, et al. (2004) Mutations in HFE2 cause iron overload in chromosome 1q-linked juvenile hemochromatosis. Nat Genet. 36(1):77-82.
  • Babitt JL, et al. (2006) Bone morphogenetic protein signaling by hemojuvelin regulates hepcidin expression. Nat Genet. 38(5):531-9.
  • Zhang AS, et al. (2008) Neogenin-mediated hemojuvelin shedding occurs after hemojuvelin traffics to the plasma membrane. J Biol Chem. 283(25):17494-502.
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    • Human Hemojuvelin / HFE2 Protein (His Tag) SDS-PAGE