NCIt definition : A selective inhibitor of cyclin-dependent kinase 7 (CDK7), with potential antineoplastic
activity. Upon administration, SY-1365 binds to and inhibits CDK7, thereby inhibiting
CDK7-mediated signal transduction pathways. This inhibits cell growth of CDK7-overexpressing
tumor cells. CDK7, a serine/threonine kinase, plays a key role in cell proliferation;
CDK7 is overexpressed in a variety of tumor cell types.;