Biochemical Society Transactions,
Год журнала:
2023,
Номер
51(3), С. 995 - 1008
Опубликована: Май 12, 2023
ADP-ribosylation
is
a
post-translational
modification
involved
in
DNA
damage
response
(DDR).
In
higher
organisms
it
synthesised
by
PARP
1–3,
strand
break
sensors.
Recent
advances
have
identified
serine
residues
as
the
most
common
targets
for
during
DDR.
To
ADP-ribosylate
serine,
PARPs
require
an
accessory
factor,
HPF1
which
completes
catalytic
domain.
Through
ADP-ribosylation,
recruit
variety
of
factors
to
site
and
control
their
activities.
However,
timely
removal
also
key
genome
stability
mostly
performed
two
hydrolases:
PARG
ARH3.
Here,
we
describe
writers,
readers
erasers
contribution
mounting
We
discuss
use
inhibitors
cancer
therapy
ways
tackle
PARPi
treatment
resistance.
Cell,
Год журнала:
2023,
Номер
186(21), С. 4475 - 4495
Опубликована: Окт. 1, 2023
ADP-ribosylation
is
a
ubiquitous
modification
of
biomolecules,
including
proteins
and
nucleic
acids,
that
regulates
various
cellular
functions
in
all
kingdoms
life.
The
recent
emergence
new
technologies
to
study
has
reshaped
our
understanding
the
molecular
mechanisms
govern
establishment,
removal,
recognition
this
modification,
as
well
its
impact
on
organismal
function.
These
advances
have
also
revealed
intricate
involvement
human
physiology
pathology
enormous
potential
their
manipulation
holds
for
therapy.
In
review,
we
present
state-of-the-art
findings
covering
work
structural
biology,
biochemistry,
cell
clinical
aspects
ADP-ribosylation.
Molecular Cell,
Год журнала:
2023,
Номер
83(10), С. 1743 - 1760.e11
Опубликована: Апрель 27, 2023
PARP1,
an
established
anti-cancer
target
that
regulates
many
cellular
pathways,
including
DNA
repair
signaling,
has
been
intensely
studied
for
decades
as
a
poly(ADP-ribosyl)transferase.
Although
recent
studies
have
revealed
the
prevalence
of
mono-ADP-ribosylation
upon
damage,
it
was
unknown
whether
this
signal
plays
active
role
in
cell
or
is
just
byproduct
poly-ADP-ribosylation.
By
engineering
SpyTag-based
modular
antibodies
sensitive
and
flexible
detection
mono-ADP-ribosylation,
fluorescence-based
sensors
live-cell
imaging,
we
demonstrate
serine
constitutes
second
wave
PARP1
signaling
shaped
by
HPF1/PARP1
ratio.
Multilevel
chromatin
proteomics
reveals
histone
readers,
RNF114,
ubiquitin
ligase
recruited
to
lesions
through
zinc-finger
domain,
modulating
damage
response
telomere
maintenance.
Our
work
provides
technological
framework
illuminating
ADP-ribosylation
wide
range
applications
biological
contexts
establishes
important
information
carrier
signaling.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Июнь 2, 2023
Abstract
In
the
mammalian
DNA
damage
response,
ADP-ribosylation
signalling
is
of
crucial
importance
to
mark
sites
as
well
recruit
and
regulate
repairs
factors.
Specifically,
PARP1:HPF1
complex
recognises
damaged
catalyses
formation
serine-linked
marks
(mono-Ser-ADPr),
which
are
extended
into
ADP-ribose
polymers
(poly-Ser-ADPr)
by
PARP1
alone.
Poly-Ser-ADPr
reversed
PARG,
while
terminal
mono-Ser-ADPr
removed
ARH3.
Despite
its
significance
apparent
evolutionary
conservation,
little
known
about
in
non-mammalian
Animalia
.
The
presence
HPF1,
but
absence
ARH3,
some
insect
genomes,
including
Drosophila
species,
raises
questions
regarding
existence
reversal
serine-ADP-ribosylation
these
species.
Here
we
show
quantitative
proteomics
that
Ser-ADPr
major
form
response
melanogaster
dependent
on
d
Parp1:
Hpf1
complex.
Moreover,
our
structural
biochemical
investigations
uncover
mechanism
removal
Parg.
Collectively,
data
reveal
PARP:HPF1-mediated
a
defining
feature
DDR
striking
conservation
within
this
kingdom
suggests
organisms
carry
only
core
set
ADP-ribosyl
metabolising
enzymes,
such
,
valuable
model
study
physiological
role
signalling.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(5), С. 1794 - 1794
Опубликована: Фев. 20, 2025
The
maintenance
of
genome
stability
and
the
prevention
genotoxic
damage
to
DNA
require
immediate
repair.
In
cell,
repair
process
is
usually
preceded
by
a
release
from
complexes
with
chromatin
proteins
accompanied
nucleosome
sliding,
relaxing
or
disassembly.
Base
excision
(BER)
corrects
most
common
lesions,
which
does
not
disturb
helix
dramatically.
Notably,
small
lesions
can
be
repaired
in
without
global
decompaction.
One
regulatory
mechanisms
poly(ADP-ribosyl)ation,
leading
relaxation
nucleosome.
our
work,
we
demonstrated
that
recently
discovered
protein,
HPF1,
modulate
efficiency
one
key
BER
stages-DNA
synthesis-via
regulation
total
poly(ADP-ribosyl)ation.
Accordingly,
investigated
both
short-patch
long-patch
synthesis
catalyzed
polymerase
β
(pol
β;
main
BER)
showed
HPF1's
influence
on
poly(ADP-ribosyl)ation
PARP1
especially
PARP2
results
more
efficient
case
pathway
nucleosomes.
Additionally,
HPF1-dependent
was
found
positively
regulate
BER.