To further dissect the relationship between SMARCA4 and ovarian cancer, we evaluated single-cell SMARCA4 protein expression using tissue microarrays (TMAs) from a clinically annotated cohort High grade serous ovarian cancer-Centre hospitalier de l'Université de Montréal (HGSOC-CHUM) of treatment naïve patients. The gene discussed is SMARCA4; the disease is ovarian serous adenocarcinoma.