2016
DOI: 10.1074/mcp.m115.053181
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An Impaired Respiratory Electron Chain Triggers Down-regulation of the Energy Metabolism and De-ubiquitination of Solute Carrier Amino Acid Transporters

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Cited by 17 publications
(24 citation statements)
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References 70 publications
(81 reference statements)
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“…By comparing the mtDNA reads between chRCC and controls, a significant and 3-fold decrease of the mtDNA content in chRCC was identified ( Figure 4j). This has been previously observed for chRCC (Meierhofer et al, 2004) and might be directly correlated to the abundance decrease of OXPHOS subunits, as similar observations in ρ 0 cells, entirely depleted of mtDNA, showed a severe reduction of all proteins involved in the respiratory chain (Aretz et al, 2016).…”
Section: Mtdna Mutations and Copy Number Variations In Chrccsupporting
confidence: 86%
“…By comparing the mtDNA reads between chRCC and controls, a significant and 3-fold decrease of the mtDNA content in chRCC was identified ( Figure 4j). This has been previously observed for chRCC (Meierhofer et al, 2004) and might be directly correlated to the abundance decrease of OXPHOS subunits, as similar observations in ρ 0 cells, entirely depleted of mtDNA, showed a severe reduction of all proteins involved in the respiratory chain (Aretz et al, 2016).…”
Section: Mtdna Mutations and Copy Number Variations In Chrccsupporting
confidence: 86%
“…Hence, the need to degrade defective oxidized transporters or proteins through the 26S proteasome via ubiquitination is reduced. This is supported by the global de-ubiquitination found in ρ 0 cells [21]. The molecular mechanism for the enhanced transporter activity in ρ 0 cells still remains to be discovered.…”
Section: Resultsmentioning
confidence: 81%
“…r 0 cells are devoid of mtDNA and show drastic reduction of all ETC proteins (46). As a lower mtDNA copy number has been reported in chRCC (47), we speculated that the decreased levels of ETC complex subunits could be explained by a fewer number of copies of mtDNA.…”
Section: Decreased Mtdna Content and Mutations Lead To Oxphos Dysfuncmentioning
confidence: 72%
“…For example, the enzymatic activity of ETC complex subunits in chRCC and RO (15) corresponds to the abundance of the proteins and not gene expression. A study of mtDNA-depleted r 0 cells showed that the levels of all ETC components were significantly reduced because complex assembly is not possible without the core mtDNA-encoded subunits (46). Thus, the inverse relationship between transcript and protein levels in chRCC was mainly due to reduced mtDNA content.…”
Section: Discussionmentioning
confidence: 99%