RT Journal Article SR Electronic T1 p27 Activates CDK4 and Blocks Palbociclib-Mediated CDK4 Inhibition JF Cancer Discovery JO Cancer Discov FD American Association for Cancer Research SP 172 OP 172 DO 10.1158/2159-8290.CD-RW2020-001 VO 10 IS 2 YR 2020 UL http://cancerdiscovery.aacrjournals.org/content/10/2/172.2.abstract AB Structural and biochemical studies revealed how p27 interacts with and activates CDK4.