L3MBTL3 and brain cancer: Bovine L3MBTL3 protein isoforms expressed in GC and the endometrial cell line possesses three malignant brain tumor (MBT) repeat domains (MBT-1: M268-K336; MBT-2: M375-Y442; MBT-3: M479-P543), C2HC zinc finger domain (G557-S586) and a sterile alpha motif domain (SAM; S706-K770).