Recombinant Human Epigen (rHuEpigen)

Official Full Name

Recombinant Human Epigen (rHuEpigen)

Synonyms

EPG, Epithelial Mitogen

Squence

Squence of Recombinant Human Epigen

Amino Acid Sequence

AVTVTPPITA QQADNIEGPI ALKFSHLCLE DHNSYCINGA CAFHHELEKA ICRCFTGYTG ERCEHLTLTS YA

Synonyms

EPG, Epithelial Mitogen

Accession

Q6UW88

Gene ID

255324

Summary

Epigen is a member of the epidermal growth factor family and is expressed by several tissues, including the testis, liver, heart and in certain tumor cells. It is strongly mitogenic for fibroblasts and epithelial cells, despite its relatively weak affinity for its main receptor, ErbB1. The mitogenic potential of Epigen is enhanced by its unusually long persistence on the membrane before ubiquitylation and receptor-mediated depletion. The gene of human Epigen encodes a 154 amino acid (a.a.) residue type I transmembrane precursor glycoprotein which contains a 22 a.a. signal peptide, an 88 a.a. extracellular domain, a 21 a.a. transmembrane domain and a 23 a.a. cytoplasmic domain. By alternative splicing of the gene, Epigen has several isoforms. The mature, shed form of human Epigen (54 – 104a.a.) shares 92 %, 94 % and 94 % a.a. sequence identity with mouse, rat and equine Epigen, respectively.

Source

Escherichia coli.

Molecular Weight

Approximately 7.9 kDa monomeric protein, containing 72 amino acid residues, which comprises the EGF homologous portion of the Epigen precursor.

Biological Activity

Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine Balb/c 3T3 cells is less than 300 ng/ml, corresponding to a specific activity of > 3.3 × 103 IU/mg.

Appearance

Sterile filtered white lyophilized (freeze-dried) powder.

Formulation

Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.

Endotoxin

Less than 1 EU/ug of rHuEpigen as determined by LAL method.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Stability and Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.- 1 month, 2 to 8 °C under sterile conditions after reconstitution.- 3 months, -20 to -70 °C under sterile conditions after reconstitution.

References

Purity

> 98 % by SDS-PAGE and HPLC analyses.

SDS-PAGE

SDS-PAGE of Recombinant Human Epigen

Pack Size

5ug/100ug/500ug

Safety Data Sheet (SDS) Download

Click to download

Technical Data Sheet (TDS) Download

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Links

This product is branded by ChemWhat and sold through our website and here is the corresponding link Recombinant Human Epigen (rHuEpigen) on ChemWhat