MCL1（MCL1 apoptosis regulator， BCL2 family member），癌症关联基因，基因ID：4170，该基因编码一种抗凋亡蛋白，属于bcl-2家族。选择性剪接导致多个转录变体。最长的基因产物（亚型1）通过抑制细胞凋亡来增强细胞存活，而交替剪接的较短的基因产物（亚型2和亚型3）则促进细胞凋亡并诱导死亡。[由RefSeq提供，2010年10月]This gene encodes an anti-apoptotic protein， which is a member of the Bcl-2 family. Alternative splicing results in multiple transcript variants. The longest gene product (isoform 1) enhances cell survival by inhibiting apoptosis while the alternatively spliced shorter gene products (isoform 2 and isoform 3) promote apoptosis and are death-inducing. [provided by RefSeq， Oct 2010]。