In The Cancer Genome Atlas (TCGA) OC mRNA dataset, GPRC5A was associated with worse OS survival (Fig EV5A; 40% highest vs. 40% lowest GPRC5A expressing patients, P = 0.045) and co‐expressed with EphA2, for which we did not obtain reliable detection in the TMA (Fig EV5B; http://cancergenome.nih.gov/). Here, EPHA2 is linked to cancer.