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Human ERH / DROER Protein (His Tag)

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ERHProtein Product Information
Protein Construction:A DNA sequence encoding the mature form of human ERH (P84090) (Met1-Lys104) was expressed with a polyhistidine tag at the N-terminus.
Expressed Host:E. coli
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.
ERHProtein QC Testing
Purity:> 95 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:His
Molecule Mass:The recombinant human ERH consists of 119 amino acids and predicts a molecular mass of 14.1 KDa. It migrates as an approximately 14 KDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile 20mMTris, 0.1M NaCl, 1mM DTT, 20% glycerol pH 7.4.
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.
ERHProtein 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.

ERH(enhancer of rudimentary homolog) belongs to the E(R) family. It is expressed in all tissues examined. The monomeric structure of ERH comprises a single domain consisting of three α-helices and four β-strands, which is a novel fold. In the crystal structure, ERH assumes a dimeric structure, through interactions between the β-sheet regions. The formation of an ERH dimer is consistent with the results of analytical ultracentrifugation. ERH may have a role in the cell cycle. The Drosophila protein ERH is a small protein of 104 amino acids. It has been found to be an enhancer of the rudimentary gene, involved in pyrimidine biosynthesis. From an evolutionary point of view, ERH is highly conserved and has been found to exist in probably all multicellular eukaryotic organisms. ERH interacts with POLDIP3.

  • Wojcik E, et al. (1994) The secreted glycoprotein CREG enhances differentiation of NTERA-2 human embryonal carcinoma cells. Oncogene. 19(17):2120-8.
  • Wen SJ, et al. (2003) Screening the proteins that interact with calpain in a human heart cDNA library using a yeast two-hybrid system. Hypertens Res. 25(4):647-52.
  • Gelsthorpe M, et al. (1997) The putative cell cycle gene, enhancer of rudimentary, encodes a highly conserved protein found in plants and animals. Gene. 186(2):189-95.
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