We at Novus Biologicals recently added two new MCP1 antibodies to our antibody catalog. MCP1, also known as MCAF (monocyte chemotactic and activating factor) is released by a diverse range of cell types as part of the inflammatory response. A member of the SIG (small inducible gene) family, it is selective for monocytes and basophils, mainly to recruit monocytes to injury and infection sites.