重组人IGFBP7蛋白

人

人胚胎肾细胞（HEK293）

A DNA sequence encoding the human IGFBP7 (Q16270) (Met 1-Leu 282) was fused with a polyhistidine tag at the C-terminus.

> 92 % as determined by SDS-PAGE

Measured by its binding ability in a functional ELISA. Immobilized IGFBP7 at 20 μg/ml (100 μl/well) can bind biotinylated human IGF2-nusa. The EC₅₀ of biotinylated human IGF2-nusa is 0.57 μg/ml.

The secreted recombinant human IGFBP7 comprises 267 amino acids and has a predicted molecular mass of 27.9 kDa. Since IGFBP7 can be proteolytically cleaved between lysine 97 and alanine 98, the apparent molecular mass of rh IGFBP7 is approximately 36 & 32 kDa in SDS-PAGE under reducing conditions, corresponding to the whole protein and the cleaved form respectively.

IGFBPRP1; FSTL2; IBP-7; IGFBP-7V; IGFBP7; MAC25; TAF; AGM; IGFBP-7; PSF; RAMSVPS

Insulin-like growth factor-binding protein 7

Insulin like growth factor binding protein 7 (IGFBP7) is a member of the IGFBP family. It has been identified in colorectal adenocarcinoma (CRC) cell lines. The Insulin-like growth factor-binding protein also known as IGFBP serves as a carrier protein for Insulin-like growth factor 1. IGFBPs are clearly distinct but are sharing regions with strong homology. All members of the IGFBP family bind IGF-I and IGF-II with about equal affinity. Insulin-like growth factor (IGF) binding proteins (IGFBPs) have been shown to either inhibit or enhance the action of IGF, or act in an IGF-independent manner in the prostate. IGFBP7 could inhibit cell growth, decrease soft agar colony formation activity and induce apoptosis in RKO and SW620 cells. There is mounting evidence that the structure of the IGFBP proteins plays a key role in the regulation of IGF bioavailability, by modulating its molecular size, capillary membrane permeability, target tissue specificity, cell membrane adherence and IGF affinity.

Lyophilized from sterile PBS, pH 7.4
1. 5 % trehalose and mannitol are added as protectants before lyophilization.
2. Please contact us for any concerns or special requirements.

< 1.0 EU per μg of the protein as determined by the LAL method

Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.