Updated project metadata. The proteomic approach aimed at the identification of interaction partners for the human dual phosphatase and tumor suppressor CDC14B by Co-inmunoprecipitation (Co-IP) experiments. In this approach, CDC14B interactomes from unsynchronized and G2/M enriched cells were compared semi-quantitatively based on spectral counting. This approach yielded the deubiquitylase USP9X as a G2/M-specific CDC14B interactor which has been confirmed by Western-blot (WB).