Erythroblastosis Virus E26 Transforming Sequence Related Gene （ERG） facilitates endothelial homeostasis. ERG is found in malignant and benign vascular endothelial tumours, including hemangiomas and Kaposi＆#39;s sarcoma. ERG is present in various prostate carcinomas, but is absent in breast, colon, and urothelium carcinomas. Anti-ERG is useful for differentiating prostate carcinoma from non-prostatic epithelial tumours, and for recognizing vascular endothelial neoplasms.
