Monocyte chemotactic protein (MCP-2) is a C-C chemokine. It shares over 60% amino acid identity with MCP-1 and MCP- 3 and has about 30% identity with other C-C chemokines MIP-1 alpha, RANTES, and MIP-1 beta. MCP-2 is chemotactic for and activates a wide variety of inflammatory cells. Also, its spectrum of action on leukocytes is similar to that of MCP-3. The leukocytes affected are monocytes, T lymphocytes, natural killer cells, basophils, mast cells, and eosinophils - differs from MCP-1 which is not active on eosinophils. MCP-2 has been proposed to interact with multiple C-C chemokine receptors, including those used by MCP-1 and MCP-3. However, since leukocytes express a multiplicity of chemokine receptors with promiscuous binding and functional properties, it is difficult to identify the receptors used by a given ligand on these cells.
<1.0 EU/μg of recombinant protein as determined by the LAL method.
Biological Activity Comment
The ED(50) was determined by the dose-dependent chemo-attraction human PBMC using a range of 10-100 ng/mL.
Weight
9.0 kDa
Description
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.
Format
Lyophilized PowderMouse MCP-2 was lyophilized from a 0.2 μm filtered 20 mM PB solution pH 7.5, 100 mM NaCl.
Purity
>95% as determined by SDS-PAGE
Storage
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.