Also of note, putative duplications
of 26S proteasome non-ATPase regulatory subunit 4 (PSMD4)
and ubiquitin carboxyl-terminal esterase L3 (UCHL3) were identified
with evidence of expression, which is intriguing considering
the known involvement of the proteasome-ubiquitin system in
aging (Lo´ pez-Otı´n et al., 2013)