Abstract:
:Gene dosage alterations caused by aneuploidy are a common feature of most cancers yet pose severe proteotoxic challenges. Therefore, cells have evolved various dosage compensation mechanisms to limit the damage caused by the ensuing protein level imbalances. For instance, for heteromeric protein complexes, excess nonstoichiometric subunits are rapidly recognized and degraded. In this issue of Genes & Development, Brennan et al. (pp. 1031-1047) reveal that sequestration of nonstoichiometric subunits into aggregates is an alternative mechanism for dosage compensation in aneuploid budding yeast and human cell lines. Using a combination of proteomic and genetic techniques, they found that excess proteins undergo either degradation or aggregation but not both. Which route is preferred depends on the half-life of the protein in question. Given the multitude of diseases linked to either aneuploidy or protein aggregation, this study could serve as a springboard for future studies with broad-spanning implications.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Samant RS,Masto VB,Frydman Jdoi
10.1101/gad.329383.119subject
Has Abstractpub_date
2019-08-01 00:00:00pages
1027-1030issue
15-16eissn
0890-9369issn
1549-5477pii
33/15-16/1027journal_volume
33pub_type
评论abstract::Disruptions in the use of skeletal muscle lead to muscle atrophy. After short periods of disuse, muscle atrophy is reversible, and even after prolonged periods of inactivity, myofiber degeneration is uncommon. The pathways that regulate atrophy, initiated either by peripheral nerve damage, immobilization, aging, catab...
journal_title:Genes & development
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abstract::Transcription of frog rDNA by mouse cell factors is the only documented exception to the observed species selectivity of rRNA gene expression. This heterologous transcription is authentic in that it uses the normal frog upstream and core promoter domains, as well as the normal mouse polymerase I transcription factors,...
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.9.18.2266
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
pub_type: 杂志文章
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更新日期:2002-08-01 00:00:00
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journal_title:Genes & development
pub_type: 评论,杂志文章
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journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.188292.112
更新日期:2012-09-01 00:00:00
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
pub_type: 杂志文章,评审
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更新日期:2017-11-15 00:00:00
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
pub_type: 杂志文章,评审
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更新日期:2017-06-15 00:00:00
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
pub_type: 杂志文章
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更新日期:2000-08-15 00:00:00