Results 61 to 70 of about 248,818 (307)

Order of the Proteasomal ATPases and Eukaryotic Proteasome Assembly [PDF]

Cell Biochemistry and Biophysics, 2011
The 26S proteasome is responsible for a large fraction of the regulated protein degradation in eukaryotic cells. The enzyme complex is composed of a 20S proteolytic core particle (CP) capped on one or both ends with a 19S regulatory particle (RP). The RP recognizes and unfolds substrates and translocates them into the CP.
Robert J, Tomko, Mark, Hochstrasser
openaire   +2 more sources

Translating whole‐genome doubling into precision medicine in cancer

Molecular Oncology, EarlyView.
Whole‐genome doubling creates a WGD‐positive tumor state characterized by persistent chromosomal instability, karyotypic diversification, and cellular stress. These same biological pressures drive aggressive tumor evolution while exposing therapeutic vulnerabilities, providing a rationale for WGD‐informed precision medicine. Whole‐genome doubling (WGD)
Sejung Lee, Junghyeok Lim, Jinhyuk Bhin
wiley   +1 more source

Deletion of proteasomal subunit S5a/Rpn10/p54 causes lethality, multiple mitotic defects and overexpression of proteasomal genes in Drosophila melanogaster [PDF]

, 2003
The regulatory complex of the 26S proteasome is responsible for the selective recognition and binding of multiubiquitinated proteins. It was earlier shown that the subunit S5a/Rpn10/p54 of the regulatory complex is the only cellular protein capable of ...
Andó, István, Deák, Péter, Kurucz, Éva, Udvardy, Andor, Kiss, István, Haracska, Lajos, Virágh, Erika, Szlanka, Tamás   +7 more
core   +1 more source

Regulation of Life & Death by REGγ

Cells, 2022
REGγ, a proteasome activator belonging to the 11S (otherwise known as REG, PA28, or PSME) proteasome activator family, is widely present in many eukaryotes.
Keaton E. Funderburk, Jungseog Kang, Henry J. Li   +2 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

Ubiquitination of Intramitochondrial Proteins: Implications for Metabolic Adaptability

Biomolecules, 2020
Mitochondria are constantly subjected to stressful conditions due to their unique physiology and organization. The resulting damage leads to mitochondrial dysfunction, which underlies many pathophysiological conditions.
Prasad Sulkshane, Jonathan Ram, Michael H Glickman   +2 more
doaj   +1 more source

Proteasome dynamics

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2014
Proteasomes are highly conserved multisubunit protease complexes and occur in the cyto- and nucleoplasm of eukaryotic cells. In dividing cells proteasomes exist as holoenzymes and primarily localize in the nucleus. During quiescence they dissociate into proteolytic core and regulatory complexes and are sequestered into motile cytosolic clusters ...
openaire   +2 more sources

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

FEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo, Sandy Richter, Christoph Bach, Wieland Kiess, Anna Kirstein, Diana Le Duc, Antje Garten   +6 more
wiley   +1 more source

Structure-guided design and optimization of small molecules targeting the protein-protein interaction between the von hippel-lindau (VHL) E3 ubiquitin ligase and the hypoxia inducible factor (HIF) alpha subunit with in vitro nanomolar affinities [PDF]

, 2014
E3 ubiquitin ligases are attractive targets in the ubiquitin-proteasome system, however, the development of small-molecule ligands has been rewarded with limited success.
Dias, David M, Carles Galdeano (1305135), Galdeano, Carles, Dias, David M., David M. Dias (1340694), Van Molle, Inge, Gadd, Morgan Stuart, Ciulli, Alessio, Sarah Hewitt (1340700), Soares, Pedro, Galdeano , Carles, Pedro Soares (393566), Gadd, Morgan S., Salvatore Scaffidi (1340703), Inge Van Molle (1284120), Morgan S. Gadd (149371), Scaffidi, Salvatore, Ipek Birced (1340697), Alessio Ciulli (762789), Hewitt, Sarah, Birced, Ipek   +20 more
core   +1 more source