Insulin-Like Growth Factor Binding Protein 4 (IGFBP4), recombinant human protein is supplied as a lyophilized powder. It is suitable for use in protein studies such as protein structure analysis and protein-protein interactions. In general, recombinant proteins can also be used as an immunogen, as a protein standard, or in cell biology research applications.

This recombinant protein was expressed from a DNA sequence encoding the human IGFBP4 (NP_001543.2) precursor (Met 1-Glu 258) fused to a C-terminal polyhistidine tag.

Activity:
1. Measured by its ability to bind human IGF1 (Cat:10598-H24E) in functional ELISA.
2.Measured by its ability to bind human IGF2 (Cat:13032-H24E) in functional ELISA.

Formulation: Lyophilized in 140 mM NaCl, 2.7 mM KCl, 10 mM Na₂HPO₄, 1.8 mM KH₂PO₄, pH7.4, 5% Mannitol, 5% Trehalose, 0.02% Tween80.

Reconstitution: Dissolve the protein in sterile double distilled water to a concentration of 25 µg/ µl or lower. It is recommended that the protein be aliquoted and be used as soon as possible. Store aliquots under sterile conditions at -20°C. Avoid repeated freeze-thaw cycles.

Expiration Date: Expires one year from date of receipt when stored as instructed.

This protein is manufactured by SINO Biological.