Dynamic networks connect the USP14 active site region with the proteasome interaction surface. [PDF]
Abstract Ubiquitin‐specific protease 14 (USP14) is a member of the USP family responsible for the catalytic removal of ubiquitin (Ub) from proteins directed to the proteasome, implicated in the pathogenesis of neurodegeneration and cancer. Crystallography and cryo‐EM analysis have identified loop regions crucial for the deubiquitinase activity of USP14,
Salomonsson J +6 more
europepmc +2 more sources
The methionine 1 (M1)-specific deubiquitinase (DUB) OTULIN acts as a negative regulator of nuclear factor κB signaling and immune homeostasis. By replacing Gly76 in distal ubiquitin (Ub) by dehydroalanine we designed the diubiquitin (diUb) activity-
Weber A +7 more
europepmc +2 more sources
Cezanne (OTUD7B) regulates HIF-1α homeostasis in a proteasome-independent manner [PDF]
The transcription factor HIF-1α is essential for cells to rapidly adapt to low oxygen levels (hypoxia). HIF-1α is frequently deregulated in cancer and correlates with poor patient prognosis.
Anja Bremm +9 more
core +1 more source
Screening of DUB activity and specificity by MALDI-TOF mass spectrometry [PDF]
Deubiquitylases (DUBs) are key regulators of the ubiquitin system which cleave ubiquitin moieties from proteins and polyubiquitin chains. Several DUBs have been implicated in various diseases and are attractive drug targets. We have developed a sensitive
Virdee, Satpal; id_orcid +15 more
core +1 more source
Cocrystallization of ubiquitin–deubiquitinase complexes through disulfide linkage
The crystal structures of two disulfide‐linked ubiquitin‐bound bacterial deubiquitinases reveal the mode of ubiquitin binding. These structures show that disulfide linking is an effective strategy for capturing covalent ubiquitin–deubiquitinase complex structures.Structural characterization of the recognition of ubiquitin (Ub) by deubiquitinases (DUBs)
Kristos I. Negron Teron +1 more
wiley +1 more source
14-3-3 Proteins Interact with a Hybrid Prenyl-Phosphorylation Motif to Inhibit G Proteins [PDF]
Signaling through G proteins normally involves conformational switching between GTP- and GDP-bound states. Several Rho GTPases are also regulated by RhoGDI binding and sequestering in the cytosol.
Riou, P +62 more
core +1 more source
Polyubiquitin binding to ABIN1 is required to prevent autoimmunity [PDF]
The protein ABIN1 possesses a polyubiquitin-binding domain homologous to that present in nuclear factor kappa B (NF-kappa B) essential modulator (NEMO), a component of the inhibitor of NF-kappa B (I kappa B) kinase (IKK) complex.
Ordureau, Alban +23 more
core +1 more source
Molecular basis of Lys11-polyubiquitin specificity in the deubiquitinase Cezanne [PDF]
The post-translational modification of proteins with polyubiquitin regulates virtually all aspects of cell biology. Eight distinct chain linkage types co-exist in polyubiquitin and are independently regulated in cells. This â - ubiquitin code' determines
Monique P.C. Mulder +44 more
core +1 more source
Host protein phosphorylation during "Shigella flexneri" infection : a phosphoproteomic based systems biology approach [PDF]
The enteroinvasive bacterium Shigella flexneri triggers its uptake into epithelial cells by injecting several effector proteins via its type three secretion system (TTSS) and interferes with various host cell processes at later stages of infection.
Schmutz, Christoph
core +1 more source
Mechanistic studies of the phenobarbital-type induction of cytochromes P450 : role of AMP-activated protein kinase [PDF]
Inside the liver cells there are sophisticated mechanisms that have evolved over millions of years to metabolize toxic substances, many of which are fat-soluble compounds making them difficult for the body to excrete.
Blättler, Sharon
core +1 more source

