How the proteasome is degraded

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How the proteasome is degraded.

The proteasome is one of the major degradation machineries in eukaryotic cells. It terminates the existence of thousands of short-lived, damaged, misfolded or otherwise obsolete proteins and plays pivotal roles in protein quality control and other vital processes in the cell. However, very little has been known about the mechanisms that control and execute the destruction of the proteasome itse...

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The proteasome activity reporter GFP-Cl1 is degraded by autophagy in the aging model Podospora anserina

The degradation of damaged proteins is an important vital function especially during aging and stress. The ubiquitin proteasome system is one of the major cellular machineries for protein degradation. Health and longevity are associated with high proteasome activity. To demonstrate such a role in aging of Podospora anserina, we first analyzed the transcript and protein abundance of selected pro...

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Rice ROOT ARCHITECTURE ASSOCIATED1 binds the proteasome subunit RPT4 and is degraded in a D-box and proteasome-dependent manner.

Root growth is mainly determined by cell division and subsequent elongation in the root apical area. Components regulating cell division in root meristematic cells are largely unknown. Previous studies have identified rice (Oryza sativa) ROOT ARCHITECTURE ASSOCIATED1 (OsRAA1) as a regulator in root development. Yet, the function of OsRAA1 at the cellular and molecular levels is unclear. Here, w...

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A splice variant of the human phosphohistidine phosphatase 1 (PHPT1) is degraded by the proteasome.

Regulation of protein activity by phosphorylation is central in many cellular processes. Phosphorylation of serine, threonine and tyrosine residues is well documented and studied. In addition, other amino acids, like histidine can be phosphorylated, but neither the mechanism nor the function of this modification is well understood. Nevertheless, there is a 14 kDa enzyme with phosphohistidine ph...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2016

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1616535113