DCAF1 and malignant colon neoplasm: Ectopic expression of VprBP wild‐type, but not VprBP K194R kinase‐dead mutant, in VprBP‐depleted cells restored H2AT120p to levels quantitatively similar to those observed with mock‐depleted control cells—underscoring the importance of VprBP kinase activity for H2AT120p in colon cancer cells.