Results 61 to 70 of about 411,261 (379)

Proteasome inhibitors

open access: yesBiochemical Pharmacology, 2015
Proteasome inhibitors have a 20 year history in cancer therapy. The first proteasome inhibitor, bortezomib (Velcade, PS-341), a break-through multiple myeloma treatment, moved rapidly through development from bench in 1994 to first approval in 2003. Bortezomib is a reversible boronic acid inhibitor of the chymotrypsin-like activity of the proteasome ...
Teicher, Beverly A.   +1 more
openaire   +2 more sources

The IQ‐compete assay for measuring mitochondrial protein import efficiencies in living yeast cells

open access: yesFEBS Letters, EarlyView.
The efficiency of mitochondrial protein import depends on the properties of the newly synthesized precursor proteins. The Import and de‐Quenching Competition (IQ‐compete) assay is a novel method to monitor the import efficiency of different proteins by fluorescence in living yeast cells.
Yasmin Hoffman   +3 more
wiley   +1 more source

Dynamic Regulation of the 26S Proteasome: From Synthesis to Degradation

open access: yesFrontiers in Molecular Biosciences, 2019
All eukaryotes rely on selective proteolysis to control the abundance of key regulatory proteins and maintain a healthy and properly functioning proteome.
R. S. Marshall, R. Vierstra
semanticscholar   +1 more source

Ubiquitylation in immune disorders and cancer: from molecular mechanisms to therapeutic implications [PDF]

open access: yes, 2012
Conjugation of ubiquitin to proteins (ubiquitylation) has emerged to be one of the most crucial post-translational modifications controlling virtually all cellular processes.
Fulda, Simone   +2 more
core   +1 more source

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

open access: yesCell 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

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

open access: yesFEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

Artemisinin kills malaria parasites by damaging proteins and inhibiting the proteasome

open access: yesNature Communications, 2018
Artemisinin and its derivatives (collectively referred to as ARTs) rapidly reduce the parasite burden in Plasmodium falciparum infections, and antimalarial control is highly dependent on ART combination therapies (ACTs).
Jessica L. Bridgford   +11 more
semanticscholar   +1 more source

The proteasome lid triggers COP9 signalosome activity during the transition of Saccharomyces cerevisiae cells into quiescence. [PDF]

open access: yes, 2019
The class of Cullin–RING E3 ligases (CRLs) selectively ubiquitinate a large portion of proteins targeted for proteolysis by the 26S proteasome. Before degradation, ubiquitin molecules are removed from their conjugated proteins by deubiquitinating enzymes,
Bramasole, Lylan   +8 more
core  

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Insulin/IGF-1 Signaling Regulates Proteasome Activity through the Deubiquitinating Enzyme UBH-4

open access: yesCell Reports, 2013
The proteasome plays an important role in proteostasis by carrying out controlled protein degradation in the cell. Impairments in proteasome function are associated with severe and often age-related diseases.
Olli Matilainen   +4 more
doaj   +1 more source

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