This entry represents regulatory subunit 6B (gene name PSMC4 or Rpt3) of the 26S proteasome, which is a component of the 19S proteasome cap []. PSMC4 is one of the ATPases that form a heterohexameric ring for unfolding ubiquitinated proteins targeted for degradation by the proteasome, and was initially identified as Tat-binding protein 7 [].
