CEP55 and breast neoplasm: Using TCGA data, we found that 20q is significantly more frequently gained than lost in breast tumor samples (15.6 versus 1.1%, P = 1.16 × 10−34; Appendix Fig S4A) and tumors with 20q gain are significantly associated with higher CEP55 expression (P < 0.0001; Appendix Fig S4B).