Recombinant Human Persephin

Product Specifications

UniProt

P06734

Source

Escherichia coli

Endotoxin

Less than 0.1 EU/ug of rHuPersephin as determined by LAL method.

Purity

> 97 % by SDS-PAGE and HPLC analyses.

Bioactivity

Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TT medullary thyroid cancer cells is less than 10 ng/ml, corresponding to a specific activity of > 1.0 x105 IU/mg.

Form

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

Molecular Weight

Approximately 20.5 kDa, a disulfide-linked homodimer of two 96 amino acid polypeptide chains.

Storage Conditions

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.