tokens: NiCl ( 2 ) - induced MCP-1 synthesis required activation of NF-kappaB since mutation of NF-kappaB binding sites in the promoter resulted in complete loss of inducible promoter activity .
folded_tokens: nicl ( 2 ) - induce mcp-1 synthesis require activation of nf-kappab since mutation of nf-kappab binding site in the promoter result in complete loss of inducible promoter activity .