Global histone H2B degradation regulates #insulin/#IGF signaling-mediated nutrient stress
The #ubiquitin-#proteasome system regulates #histone #H2B exchange in mammalian cells and in C. elegans during development and starvation.
#insulin #Ubiquitin #proteasome #histone #h2b
What can bacteria teach us about unexplored areas of #ubiquitin signaling and regulation?
John Pruneda and colleagues discuss how #pathogens subvert the host cell #ubiquitination system by either adopting or breaking its rules
New review article as #weekendreading!
#Ubiquitin #pathogens #ubiquitination #weekendreading
#LncRNA NRON promotes #tumorigenesis by regulating #MDM2/#MDMX heterodimerization and enhancing their #ubiquitin-dependent degradation of multiple #tumorsuppressor proteins
Erwei Song, Man-Li Luo and coworkers
https://www.embopress.org/doi/full/10.15252/embj.2022112414
#lncrna #tumorigenesis #mdm2 #Ubiquitin #tumorsuppressor
Are there functions specific to #CUL4A and #CUL4B-based #ubiquitin E3 #ligases?
Matthias Peter Lab, Anna Stier et al find a CUL4B-specific N-terminal extension undergoing heavy #mitotic #phosphorylation, and promoting recruitment of a specific set of #DCAF substrate receptors involved in #cytoskeleton regulation
#cul4a #cul4b #Ubiquitin #ligases #mitotic #phosphorylation #dcaf #cytoskeleton
Chloroplast protein import is controlled not just by the #ubiquitin-#proteasome system, but also by selective #NBR1-mediated selective #autophagy of translocon components in #Arabidopsis upon UV light or heat stress
https://www.embopress.org/doi/10.15252/embj.2022112534
#Ubiquitin #proteasome #nbr1 #autophagy #arabidopsis
Termination of STING responses is mediated via #ESCRT- and #ubiquitin-dependent degradation to prevent unwarranted #inflammation
Katherine Balka, Dominic De Nardo et al @monashuni
https://www.embopress.org/doi/10.15252/embj.2022112712
#escrt #Ubiquitin #inflammation
What controls basal, #Parkin-independent #mitophagy?
E3 #ubiquitin #ligase screen by Sylvie Urbé, Michael Clague and coworkers identifies #VHL and #FBXL4 as negative regulators of mitophagy receptors #NIX and #BNIP3 via transcriptional and direct post-translational mechanisms, respectively
#parkin #mitophagy #Ubiquitin #ligase #vhl #fbxl4 #nix #bnip3
One root, two root, short root, long root! Root toot!
Ma et al. report that The F-box protein SHORT PRIMARY ROOT in #rice modulates primary #root #meristem activity by targeting SEUSS-LIKE protein for degradation.
https://doi.org/10.1111/jipb.13492
@wileyplantsci
#JIPB #PlantScience #DevBio #ubiquitin
#rice #root #meristem #JIPB #plantscience #DevBio #Ubiquitin
How do FBXL4 mutations lead to #encephalomyopathic #mtDNA depletion syndrome 13?
Hui Jiang et al find increased #mitochondrial loss and perinatal lethality in Fbxl4 KO mice due to increased levels of #mitophagy receptors #BNIP3 and NIX targeted by SCF-#FBXL4 #ubiquitin ligase
#encephalomyopathic #mtdna #mitochondrial #mitophagy #bnip3 #fbxl4 #Ubiquitin
RT @SFB_TPDvienna
The #Ubiquitin&Friends Symposium is approaching! Join us in Vienna on 27-28 April. Outstanding line-up of speakers👇
Register & submit your abstract by 30 March to apply for a selected talk.
Space is limited! So register now to save your spot:
https://www.protein-degradation.org/symposium/
RT @SFB_TPDvienna
The #Ubiquitin&Friends Symposium is approaching! Join us in Vienna on 27-28 April. Outstanding line-up of speakers👇
Register & submit your abstract by 30 March to apply for a selected talk.
Space is limited! So register now to save your spot:
https://www.protein-degradation.org/symposium/
RT @SFB_TPDvienna
The #Ubiquitin&Friends Symposium is approaching! Join us in Vienna on 27-28 April. Outstanding line-up of speakers👇
Register & submit your abstract by 30 March to apply for a selected talk.
Space is limited! So register now to save your spot:
https://www.protein-degradation.org/symposium/
EMBO Journal Issue 4/23:
- Commentary on #creativity needs in research
- #Degron recognition in orphan complex subunits by CLR4-DCAF12 E3 #ubiquitin #ligase
- #Plasmamembrane topography of #IgM #Bcell receptors
- #YAP roles and regulation in #tumorigenesis
- #Brassinosteroid interplay with #katanin #microtubule severing
Cover by Satarupa Bhaduri, Analine Aguayo, Sonya Neal et al
https://www.embopress.org/toc/14602075/2023/42/4
#creativity #degron #Ubiquitin #ligase #plasmamembrane #IgM #Bcell #yap #tumorigenesis #brassinosteroid #katanin #microtubule
Viral mimicry of a #DCAF #ubiquitin #ligase adaptor: #CryoEM shows how rodent #cytomegalovirus #CMV E27/M27 hijacks host cell #CRL4 #cullin-RING E3s to degrade #STAT2 and suppress #antiviral #interferon signaling
https://www.embopress.org/doi/10.15252/embj.2022112351
#dcaf #Ubiquitin #ligase #cryoem #cytomegalovirus #cmv #crl4 #cullin #stat2 #Antiviral #interferon
Researchers reveal #endoplasmic reticulum–associated #protein degradation and control of grain size in #rice.
#agriculture #ubiquitin #proteasome
https://phys.org/news/2023-02-reveal-endoplasmic-reticulumassociated-protein-degradation.html
#endoplasmic #protein #rice #agriculture #Ubiquitin #proteasome
#PUB8 modulates early #seedling #growth of #Arabidopsis.
#signalling #hormones #ABI3 #ubiquitin
https://phys.org/news/2023-02-pub8-modulates-early-seedling-growth.html
#pub8 #seedling #growth #arabidopsis #signalling #hormones #abi3 #Ubiquitin
Protein complex assembly #qualitycontrol in action:
#cryoEM structures by Nico Thomä at FMI and colleagues show how #CRL4-#DCAF12 #ubiquitin E3 #ligase engages a C-terminal di-Glu #degron in CCT5 recognizable only when this subunit is not incorporated into the #TRiC/#CCT #chaperone complex
https://www.embopress.org/doi/10.15252/embj.2022112253
#qualitycontrol #cryoem #crl4 #dcaf12 #Ubiquitin #ligase #degron #tric #chaperone
In EMBO Journal issue 3:
Host #mucins negotiate peace with #toxigenic #Vibrio
Cytosolic #stressgranules relieve nuclear #ubiquitin-#proteasome system
#Smoothened #cholesterylation and ER exit links in #Hedgehog signaling
Developmental #cellfate decision control by #chromatin reader #TRIM33
Cover by Kimon Lemonides, Helen Walden et al
#mucins #toxigenic #vibrio #StressGranules #Ubiquitin #proteasome #smoothened #cholesterylation #hedgehog #cellfate #chromatin #trim33
What happens to the #ubiquitin-#proteasome system in cells that cannot form #stressgranules?
Nico Dantuma & coworkers at Karolinska Institute find surprising #nucleolar relocalization of DRiP #peptides, compromising #proteostasis in the nucleus
https://www.embopress.org/doi/10.15252/embj.2022111802
#Ubiquitin #proteasome #StressGranules #nucleolar #peptides #proteostasis
The final 'First person' interview in our current Issue is with Vaishna Vamadevan on her PhD project in Subbareddy Maddika's lab at Centre for DNA Fingerprinting and Diagnostics, Hyderabad, Telangana, India, investigating the role of ubiquitylation in regulating various cellular events:
https://journals.biologists.com/jcs/article/135/24/jcs260861/285952/First-person-Vaishna-Vamadevan
#cellbiology #research #ubiquitin #phaseseparation #science #sciencemastodon #earlycareerresearcher
#cellbiology #research #Ubiquitin #phaseseparation #Science #sciencemastodon #EarlyCareerResearcher