Recombinant Human IGFBP3 | Z100375

abm | Recombinant Human IGFBP3 | Z100375

IGFBPs are synthesized in the liver and are produced also by various tumor cell lines and cell types. IGFBPs are high affinity binding proteins for IGF. The major fraction of both types of IGF circulating in the blood are bound non- covalently to these carrier proteins. IGF binding proteins modulate IGF activities by increasing their plasma half lives and by inhibiting or promoting the interactions of IGF with receptors on certain target cells. In addition these binding proteins provide a reservoir for IGF in pericellular spaces. Some IGFBPs also have stimulating effects in vitro and some may inhibit the growth of cells. IGFBP1 is found predominantly in the placenta and the amniotic fluid. The predominant sites of IGFBP1 transcription in the human fetal kidney are those with most active differentiation. Elevated serum levels have been observed in patients with Laron-type dwarfism and Growth hormone deficiency. High serum levels of IGFBP1 are found in newborns and it has been suggested that this could be important in protecting them from hypoglycemia.

Functions:

The ED(50) was determined by the ability to inhibit IGF-I induced proliferation of MCF-7 and was found to be ≤ 0.5 μg/mL.

Organism:

Human

Source:

E. coli

Alias:

IGF-binding protein 3, IGF-BP3, IBP-3
Recombinant Human Insulin-like Growth Factor Binding Protein 3 (IGFBP3)

Gene Symbol:

IGFBP3

Gene ID:

3486

Accession:

P17936

Formulation:

Recombinant IGFBP3 was lyophilized from a 0.2 μm filtered PBS solution.

Solubility:

A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.

Appearance:

Lyophilized Powder

Molecular Weight (kDa):

28

Molecular Weight 2 (kDA):

N/A

Molecular Weight 3 (kDA):

N/A

Purity:

>95% as determined by SDS-PAGE

Concentration:

<1.0 EU/μg of recombinant protein as determined by the LAL method.

Shipping Condition :

Ambient Temperature

Storage Condition:

The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.