Abstract
RBBP4 and RBBP7 (RBBP4/7) are highly homologous nuclear WD40 motif containing proteins widely implicated in various cancers and are valuable drug targets. They interact with multiple proteins within diverse complexes such as NuRD and PRC2, as well as histone H3 and H4 through two distinct binding sites. FOG-1, PHF6 and histone H3 bind to the top of the donut shape seven-bladed β-propeller fold, while SUZ12, MTA1 and histone H4 bind to a pocket on the side of the WD40 repeats. Here, we briefly review these six interactions and present binding assays optimized for medium to high throughput screening. These assays enable screening of RBBP4/7 toward the discovery of novel cancer therapeutics.
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