Results 121 to 130 of about 253,705 (262)

Photobiomodulation‑Engineered Extracellular Vesicles Enhance Neural Differentiation via UFL1‑Mediated UFMylation in Spinal Cord Injury

open access: yesAdvanced Science, EarlyView.
Photobiomodulated microglia release engineered extracellular vesicles that deliver UFL1 to the injured spinal cord. UFL1 competitively binds p53 with MDM2, inhibiting p53 ubiquitination and stabilizing p53 signaling. This dual mechanism simultaneously promotes anti‐inflammatory microglial polarization and directs neural stem cell differentiation toward
Yunxiao Fang   +12 more
wiley   +1 more source

Kinases with the most proteasome-insensitive and proteasome-sensitive ubiquitination sites.

open access: yes, 2016
Kinases with the most proteasome-insensitive and proteasome-sensitive ubiquitination sites.
Nevan J. Krogan (90155)   +6 more
core   +1 more source

Phase Separation of TRIM21 Modulates PTPN14 Stability to Drive Flow‐Dependent Endothelial Activation and Atherogenesis

open access: yesAdvanced Science, EarlyView.
Disturbed flow promotes the formation of TRIM21‐rich biomolecular droplets, which concentrate TRIM21 and PTPN14 and facilitate their SPRY‐FERM interaction (illustrated by the TRIM21 D355‐PTPN14 R132 salt bridge). This condensate‐driven proximity enables TRIM21 to catalyze K48‐linked polyubiquitination of PTPN14 at lysine 956, leading to proteasome ...
Xue He   +10 more
wiley   +1 more source

UBLCP1 is a 26S proteasome phosphatase that regulates nuclear proteasome activity

open access: yes, 2011
Protein degradation by the 26S proteasome is a fundamental process involved in a broad range of cellular activities, yet how proteasome activity is regulated remains poorly understood.
Xiaorong Wang   +6 more
core   +1 more source

Selective Modulation of OTUB1 Noncanonical Function via a bioPhosTAC Strategy

open access: yesAdvanced Science, EarlyView.
This work positions the versatile performance of the peptide‐based bioPhosTAC platform for dissecting phosphorylation‐dependent biology and expanding the scope of induced‐proximity technologies. We demonstrated that selective manipulation of a tyrosine phosphorylation site is sufficient to propagate coordinated cellular consequences.
Seung Un Seo   +7 more
wiley   +1 more source

Proteasome-mediated degradation of the C-terminus of the Alzheimer's disease β-amyloid protein precursor: effect of C-terminal truncation on the production of β-amyloid protein

open access: yes, 2003
The â-amyloid protein (Aâ) is derived by proteolytic processing of the amyloid protein precursor (APP). Cleavage of APP by â-secretase generates a C-terminal fragment (APP-CTFâ), which is subsequently cleaved by ã-secretase to produce Aâ.
Hill, AF (15529772)   +5 more
core  

The proteasome

open access: yes, 1997
The proteasome is a macromolecular assembly that is designed to confine proteolytic activity to an inner cavity. Access to the central proteolytic nanocompartment is restricted to unfolded proteins, which necessitates a functional coupling of the 20S ...
Wolfgang Baumeister   +3 more
core   +1 more source

Loss of CYLD on Chromosome 16q Impairs Homologous Recombination and Genomic Stability Through TIRR Degradation

open access: yesAdvanced Science, EarlyView.
Chromosome 16q loss drives genomic instability through disruption of the CYLD–TIRR–53BP1 axis. CYLD preserves homologous recombination by stabilizing TIRR and limiting 53BP1 accumulation at DNA double‐strand breaks. CYLD deficiency redirects repair toward error‐prone non‐homologous end joining, promotes mutational burden and homologous recombination ...
Mingming Lu   +14 more
wiley   +1 more source

The 20 S Proteasome

open access: yes, 1998
The 26 S proteasome—discussed in Chapter 6—is the central protease of the ubiquitin pathway of protein degradation. The core of this 2-MDa enzyme is formed by the 20 S proteasome (Peters et al., 1993), a barrel-shaped protease of about 700 kDa, which is ...
Lupas, A. ; https://orcid.org/   +4 more
core   +1 more source

Targeting β2‐Adrenergic Receptor Stability With Lycorine Reveals a Host‐Directed Pathway for Antiviral Defense Against Poxviruses

open access: yesAdvanced Science, EarlyView.
Chronic stress drives autophagy‐mediated β2‐AR degradation, impairing antiviral immunity and promoting poxvirus lethality. Lycorine directly stabilizes β2‐AR to restore host defense, suppress excessive inflammation and improve survival. ABSTRACT Psychological stress is a pervasive yet poorly understood modulator of infectious disease outcomes. Here, we
Xin Zhang   +12 more
wiley   +1 more source

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