2007
DOI: 10.1074/jbc.m702439200
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Proteasome Function Is Regulated by Cyclic AMP-dependent Protein Kinase through Phosphorylation of Rpt6

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Cited by 186 publications
(199 citation statements)
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“…For example, decreased expression of Rpn11, a 19 S RP subunit, was found to be associated with aging (59), a condition known be accompanied by increased ROS formation (60). Additional indirect effects of H 2 O 2 on proteasomal activity may be due to modulation of redox-sensitive signaling pathways, including those involving protein kinase A (61,62), that participate in the phosphorylation of Rpt6, an AAA ATPase subunit, which contributes to 26 S proteasomal function (63).…”
Section: Discussionmentioning
confidence: 99%
“…For example, decreased expression of Rpn11, a 19 S RP subunit, was found to be associated with aging (59), a condition known be accompanied by increased ROS formation (60). Additional indirect effects of H 2 O 2 on proteasomal activity may be due to modulation of redox-sensitive signaling pathways, including those involving protein kinase A (61,62), that participate in the phosphorylation of Rpt6, an AAA ATPase subunit, which contributes to 26 S proteasomal function (63).…”
Section: Discussionmentioning
confidence: 99%
“…During the past two decades, proteasome phosphorylation has often been reported, but it remains unclear whether such modifications actually perturb rates or selectivity of protein degradation. Various subunits have been shown to be phosphorylated in vivo including four of the seven α-subunits that comprise the outer rings of the 20S particle, α7, α3, α2, and α4 (3-7), and two of the six ATPases, Rpt6 (8)(9)(10)(11) and Rpt2 (12), that comprise a ring at the base of the 19S complex. Because these rings lie adjacent to each other, their interactions are very likely to be influenced by phosphorylation and dephosphorylation.…”
mentioning
confidence: 99%
“…Most recently, it was reported that the proteasomal activity is important to human sperm capacitation, and that PRKA activity regulates the chymotrypsin-like activity of the proteasome during capacitation (Kong et al 2009). Another study revealed that PRKA can positively regulate the proteasomal activity by phosphorylation of Rpt6, one of the six AAA-ATPases in the 19S regulatory subunit of the proteasome (Zhang et al 2007). In addition, we found that bovine sperm expresses both Rpt6 and the proteasome catalytic a-C2 subunit (data not shown).…”
Section: Regulation Of Pi3k In Spermmentioning
confidence: 99%