Cytoplasmic mRNA decay and quality control machineries in eukaryotes
Nature Reviews Genetics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Language: Английский
Localized K63 ubiquitin signaling is regulated by VCP/p97 during oxidative stress
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 21, 2024
ABSTRACT
Under
stress
conditions,
cells
reprogram
their
molecular
machineries
to
mitigate
damage
and
promote
survival.
Ubiquitin
signaling
is
globally
increased
during
oxidative
stress,
controlling
protein
fate
supporting
defenses
at
several
subcellular
compartments.
However,
the
rules
driving
ubiquitin
localization
these
concerted
response
mechanisms
remain
understudied.
Here,
we
show
that
K63-linked
chains,
known
proteasome-independent
pathways,
accumulate
primarily
in
non-cytosolic
compartments
induced
by
sodium
arsenite
mammalian
cells.
Our
proteomic
analyses
of
expanded
10-fold
pool
proteins
be
ubiquitinated
(2,046)
revealed
involvement
pathways
related
immune
translation
control.
Moreover,
proteome
are
recruited
under
including
a
significant
enrichment
helper
ubiquitin-binding
adaptors
ATPase
VCP
processes
substrates
for
downstream
signaling.
We
further
recruitment
occurs
ubiquitin-dependent
manner
mediated
its
adaptor
NPLOC4.
Additionally,
NPLOC4
activities
critical
sustain
low
levels
cyclical
model
conjugation
removal
disrupted
cellular
exposure
reactive
oxygen
species.
This
work
deepens
our
understanding
role
localized
basic
highlights
new
players
essential
reshape
composition
function
human
dynamic
environments.
Language: Английский
The relationship between Ribosome-associated Quality Control and neurological disorders
Juan Wang,
No information about this author
Jianhua Wang,
No information about this author
Hanshuai Cao
No information about this author
et al.
The Journals of Gerontology Series A,
Journal Year:
2024,
Volume and Issue:
80(4)
Published: Dec. 25, 2024
Abstract
Ribosome-associated
quality
control
(RQC),
a
ubiquitous
process
essential
for
maintaining
protein
homeostasis
in
eukaryotes,
acts
as
critical
surveillance
system
translation.
By
identifying
and
eliminating
stalled
ribosomes,
RQC
prevents
aberrant
translation
the
production
of
potentially
toxic
misfolded
proteins.
The
review
focuses
on
role
mammals,
where
its
complete
functionality
remains
to
be
elucidated.
This
study
delves
into
mechanisms
through
which
dysfunction
plays
development
neurological
disorders,
focusing
neurodegenerative
neurodevelopmental
diseases.
We
explore
underlying
by
contributes
pathogenesis
particularly
Further
research
is
crucial
unravel
intricate
governing
RQC’s
influence
function.
knowledge
will
pave
way
exploring
therapeutic
avenues
targeting
factors
potential
interventions
these
debilitating
shedding
light
contribution
this
opens
doors
developing
targeted
therapies
interventions.
Language: Английский