ZMAT3 and cytomegalovirus infection: Notably, we found another, previously undescribed, antiapoptotic factor which was significantly upregulated in ZAP KO cells compared to WT cells, ZMAT3 (encoding the zinc finger matrin-type protein 3, also known as zinc finger protein Wig-1), with a more pronounced upregulation in the context of HCMV infection (Fig. 5C, Fig. S5).