Recombinant human insulin-like growth factor binding protein 4 derived from E.coli
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Product Description
Specifications
| Size | 10 µg, 50 µg, 100 µg |
| Estimated Lead Time | 1-2 business days |
| Species | Human |
| Accession Number | AAH16041 |
| Gene Symbols | IGFBP4 |
| Protein Name / Synonyms | IGF-Binding Protein 4 |
| Expressed Region | Asp22-Glu258 |
| Expression System | E. coli |
| Tag | N-terminal 6x histidine tag |
| Purity | > 90% |
| Purity Determined By | SDS-PAGE under reducing conditions and visualized by Coomassie blue staining |
| Molecular Weight (kDa) | 26 kDa |
| Format | Liquid |
| Formulation | Filtered solution in PBS |
| Concentration (lot specific) | Lot specific (see the label on the vial) |
| Preservative | None |
| Endotoxin Level | Not determined |
| Shipping Type | Blue ice |
| Storage | -20°C |
SDS-PAGE Image
Activity
Measured in a cell proliferation assay using MCF‑7 human breast cancer cells. Recombinant human IGFBP-4 can inhibit the biological activity of IGF-I.
Storage/Stability
Upon arrival, the protein may be stored for 2 weeks at 4°C. For long term storage, it is recommended to store at -20°C or -80°C in appropriate aliquots. Avoid repeated freeze-thaw cycles.