IGF-BP-4, His, Human

Insulin-like growth factor-binding protein 4 (IGF-BP-4), also known as IBP-4, is a secreted glycoprotein belonging to the IGFBP family. IGF-BP-4 is produced by osteoblasts, epidermis, ovarian follicles and other tissues. It binds both insulin-like growth factor (IGF) I and II, and it circulates in the plasma in both glycosylated and non-glycosylated forms. IGF-BP-4 prolongs the half-life of the IGFs and has been shown to inhibit or stimulate the growth-promoting effects of the IGFs. Pregnancy Associated Plasma Protein A (PAPP-A) proteolytically cleaves IGF-BP-4 and reduces its affinity to bind IGFs, and thus serves as an important regulator of IGF-BP-4 function.

價格	￥400
產品編號	Z03176
規格	10 μg 50 μg 1 mg 大單詢價
數量

產品簡介圖例技術背景

產品簡介

Species

Human

Protein Construction

IGF-BP-4 (Asp22-Glu258) Accession # P22692	Poly-His
N-term	C-term

Purity

> 95% as analyzed by SDS-PAGE

Endotoxin Level

< 0.2 EU/μg of protein by gel clotting method

Biological Activity

ED₅₀ < 50.0 ng/ml, measured in a bioassay using FDC-P1 cells in the presence of 15.0 ng/ml human IGF-II.

Expression System

HEK 293

Apparent Molecular Weight

30~35 kDa, on SDS-PAGE under reducing conditions.

Formulation

Lyophilized after extensive dialysis against PBS.

Reconstitution

It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH?O or PBS up to 100 μg/ml.

Storage & Stability

Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles.

圖例

技術背景

Target Background

Synonyms

Insulin-like Growth Factor-Binding Protein 4; IBP-4; HT29-IGF-BP; colon cancer cell growth inhibitor

For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.

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IGF-BP-4, His, Human

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