膜杰作
Star Staining
分子别名（Synonym）
IGFBP1,PP12,IBP1
表达区间及表达系统（Source）
Human IGFBP-1 Protein, His Tag (IG1-H52H3) is expressed from human 293 cells (HEK293). It contains AA Ala 26 - Asn 259 (Accession # P08833).
Predicted N-terminus: Ala 26
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 27.2 kDa. The protein migrates as 32-35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human IGFBP-1 Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS
The purity of Human IGFBP-1 Protein, His Tag (Cat. No. IG1-H52H3) is more than 90% and the molecular weight of this protein is around 22-32 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human IGF-I, Fc Tag at 5 μg/mL (100 μL/well) can bind Human IGFBP-1 Protein, His Tag (Cat. No. IG1-H52H3) with a linear range of 0.01-0.156 μg/mL (QC tested).
Protocol
背景（Background）
Insulin-like growth factor-binding protein 1 (IGFBP1) is also known as placental protein 12 (PP12), which contains oneIGFBP N-terminal domain and one thyroglobulin type-1 domain. IGFBP1 can bindd both insulin-like growth factors (IGFs) I and II and circulates in the plasma. Binding of IGFBP1 can prolongd the half-life of the IGFs and alterd their interaction with cell surface receptors. Furthermore, IGFBP1 can promote cell migration. Alternate transcriptional splice variants, encoding different isoforms, have been characterized.
