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![NFkB p105/p50 Assay Kit (Colorimetric) [KA1339] - Sensitivity of the NF-?B assay using purified human recombinant p50.](http://images.novusbio.com/fullsize/NFkB-p105-p50-Assay-Kit-Colorimetric-KA1339-img0001.jpg "NFkB p105/p50 Assay Kit (Colorimetric) [KA1339] - Sensitivity of the NF-?B assay using purified human recombinant p50.")
![p53 Assay Kit (Colorimetric) [KA1351] - Assay of p53 from nickel chloride stimulated HeLa cell nuclear extracts.](http://images.novusbio.com/fullsize/p53-Assay-Kit-Colorimetric-KA1351-img0001.jpg "p53 Assay Kit (Colorimetric) [KA1351] - Assay of p53 from nickel chloride stimulated HeLa cell nuclear extracts.")