Validation of psmb9, psme2,
Tap1, and SGK regulation by Zif268 in
Zif268 knock-out mice. Semiquantitative RT-PCR was used to
determine the relative expression levels of the genes.
a, Representative RT-PCR product band intensities
for tissue from wild-type (+/+) and Zif268 knock-out
(−/−) mice. b, Relative mRNA expression
in cortical tissue isolated from age-matched Zif268 wild-type
(□) and Zif268 knock-out (▪) mice.
c, Western blot bands showing psmb9
immunoreactivity in cortical tissue from wild-type (+/+) and Zif268
knock-out (−/−) mice. d, Relative
amounts of psmb9 immunoreactivity in cortical tissue isolated from age-matched
Zif268 wild-type (□) and Zif268 knock-out
(▪) mice. The results are normalized pixel intensity (relative to
Gapdh signal intensity) (b) or
integrated band optical density (d) and are mean
± SEM: *p < 0.05, **p < 0.01,
***p < 0.001, expression levels greater in knock-out mice
compared with wild-type mice (Mann–Whitney U test).