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物种
Mouse分子别名
Insulin-like growth factor-binding protein 2, IBP-2, IGF-binding protein 2, IGFBP-2, mIGFBP-2Accession
P47877表达序列
Gln35-Gln305 with His Tag at the C-Terminus
表达宿主
HEK293分子量
38-40 kDa (Reducing)
纯度
>95% by SDS-PAGE & HPLC.内毒素含量
<0.1EU/μg活性
EC50 = 12-19 ng/ml标记
Unconjugated标签
His Tag性状
Lyophilized Powder缓冲体系
PBS, 1mM EDTA, pH7.4
溶解方法
Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
储存条件
·12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
·3 months, -20 to -80℃ under sterile conditions after reconstitution.
·1 week, 2 to 8℃ under sterile conditions after reconstitution.
·Please avoid repeated freeze-thaw cycles.文献引用
Cell Metab. 2010 Jan;11(1):11-22.
Cytokine Growth Factor Rev. 2015 Jun;26(3):329-46.
Insulin-like Growth Factor Binding Protein-2 (IGFBP-2) is a 30–36 kDa secreted protein encoded by the Igfbp2 gene, containing 271 amino acids in the mature form after cleavage of a 34-amino acid signal peptide. Mouse and human IGFBP-2 share approximately 82% homology. IGFBP-2 binds both IGF-I and IGF-II with high affinity, exhibiting 2–10 fold higher affinity for IGF-II than for IGF-I. This binding prolongs IGF half-life and modulates ligand-receptor interactions.
生物活性
Measured by its ability to inhibit the biological activity of IGFII on MCF7 human breast adenocarcinoma cells. The EC50 for this effect is 12-19 ng/mL in the presence of 14 ng/mL human IGFII.
电泳
2μg (R: reducing condition, N: non-reducing condition).
反相高效液相色谱(RP-HPLC)
>95% as determined by RP-HPLC.







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