Recombinant Human MCP-1

Monocyte chemotactic protein-1 (MCP-1) is an essential chemokine produced predominantly by macrophages and endothelial cells and is a potent chemotactic factor for monocytes.^1,2,3 It can induce the proliferation and activation of killer cells known as CHAK (CC-Chemokine-activated killer). MCP-1 is also a potent activator of human basophils, induces degranulation and the release of histamines. MCP-1 is involved in the pathogenesis of atherosclerosis and myocardial infarction.⁴

The biological activity of Human MCP-1 was determined by its monocyte chemotactic activity and its ability to chemoattract hCCR2A transfected mouse BaF/3 cells. The expected ED₅₀ for these effects are typically 5 - 20 ng/ml and 10 - 60 ng/ml, respectively.

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Gln24

Lyophilized

The predicted molecular weight of Recombinant Human MCP-1 is Mr 8.7 kDa. However, the actual molecular weight as observed by migration on SDS-PAGE is 10 kDa.

8.7

This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives.

This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.

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1. Yoshimura, T. et al. (1989) J. Exp. Med. 169: 1449
2. Oppenheim, JJ. et al. (1989) J. Exp. Med. 169: 1485
3. Rollins, BJ. et al. (1997) Blood 90: 909
4. Benjamin, EJ. et al. (2005) Ciculation 112: 1113