Product Description |
Recombinant Human IGFBP-3 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gly28-Lys291. |
Product Background |
Insulin-like growth factor binding protein-3 (IGFBP-3) is a p53 tumor suppressor-regulated protein and a major carrier for IGFs in circulation. Among six high-affinity IGFBPs, which are IGFBP-1 through 6, IGFBP-3 is the most extensively investigated IGFBP species with respect to its IGF/IGF-I receptor (IGF-IR)-independent biological actions beyond its endocrine/paracrine/autocrine role in modulating IGF action in cancer. |
Product Category |
Recombinant Protein |
Target |
IGFBP-3 |
Synonyms |
IBP3; IGFBP3; IGFBP-3; BP-53 |
Accession |
|
Species |
Human |
Biotinylated |
no |
Amino Acid Range |
Gly28-Lys291 |
Molecular Weight |
The protein has a predicted MW of 29.8 kDa. Due to glycosylation, the protein migrates to 45-60 kDa based on Bis-Tris PAGE result. |
Activity |
Immobilized Human IGFBP-3, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human IGF-II, hFc Tag with the EC50 of 0.19ug/ml determined by ELISA (QC Test). The affinity constant of 2.32 nM as determined in SPR assay (Biacore T200). See testing image for detail. |
Product Tag |
C-His |
Express System |
HEK293 |
Purity |
> 95% as determined by Bis-Tris PAGE |
Endotoxin |
Less than 1EU per ug by the LAL method. |
Form |
Lyophilized |
Shipping |
Shipped at ambient temperature. |
Formulation |
Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
Reconstitution |
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Stability And Storage |
Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. |
|
|
Human IGFBP-3, His Tag captured on CM5 Chip via anti-his antibody can bind Human IGFI, hFc Tag with an affinity constant of 2.32 nM as determined in SPR assay (Biacore T200). |
|
|
Immobilized Human IGFBP-3, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human IGF-II, hFc Tag with the EC50 of 0.19ug/ml determined by ELISA (QC Test). |
|
|
Human IGFBP-3 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%. |
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