Trends in Biochemical Sciences,
Journal Year:
2023,
Volume and Issue:
48(10), P. 910 - 911
Published: June 30, 2023
ADP-ribosylation
(ADPr),
a
widespread
post-translational
modification,
has
crucial
roles
in
various
biological
processes,
particularly
DNA
repair
signaling.
Its
clinical
significance
is
underscored
by
the
successful
use
of
poly
(ADP-ribose)
polymerase
(PARP)
inhibitors
cancer
therapy.
Our
recent
discovery
serine
ADPr
HPF1/PARP1
complex
paved
way
for
phospho-guided
enzymatic
strategy.
This
approach
enables
site-specific
installation
ADP-ribose
on
peptides
that
then
serve
as
antigens
generating
and
broad-specificity
mono-ADPr
antibodies.
The
sensitivity,
versatility,
specificity
this
strategy
recently
enabled
our
second
wave
PARP1
signaling,
an
unexpected
finding
given
that,
over
50
years,
poly-ADPr
was
viewed
sole
product
PARP1.
Likewise,
methodology
poised
to
expedite
understanding
signaling
pathways
regulated
PARPs
other
enzymes,
most
which
catalyze
mono-ADPr.
Fast
production:
numerous
ADP-ribosylated
can
quickly
be
generated
scalable
amounts.
Broad
applicability
peptides:
generation
diverse
antibodies,
peptide-based
interaction
proteomics,
preparation
site-specifically
modified
nucleosomes.
Remarkable
specificity:
no
cross-reactivity
toward
poly-ADPr.
Unique
capability
antibody
site-specificity:
it
currently
only
available
Versatility:
effortless
format-switching
applications,
including
peroxidase-coupled
format
superior
sensitivity
western
blotting.
antibodies
beyond
ADPr:
recognition
mono(ADP-ribose)
transferases,
SIRT6,
PARP3,
PARP14.
Limitations
targeting
residues:
because
limited
tyrosine
peptides,
falls
short
creating
forms
ADPr,
such
arginine,
glutamate,
cysteine.
while
platform,
based
mono-ADP-ribosylated
generate
recognizing
both
mono-
poly-ADPr,
exclusively
target
not
achievable.
I.M.
supported
ERC
consolidator
grant
(864117)
EMBO
Young
Investigator
Program.
During
work,
authors
used
ChatGTP-4
proofread
text.
After
using
tool,
reviewed
edited
content
needed
take
full
responsibility
publication.
H.D.,
E.J.L.,
declare
following
competing
financial
interests:
Max-Planck-Innovation,
technology
transfer
center
Max
Planck
Society,
licensed
AbD33204,
AbD33205,
AbD33644,
AbD34251,
AbD33641,
AbD43647
Bio-Rad
Laboratories.
Cell,
Journal Year:
2023,
Volume and Issue:
186(21), P. 4475 - 4495
Published: Oct. 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.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 18, 2024
Abstract
Ester-linked
post-translational
modifications,
including
serine
and
threonine
ubiquitination,
have
gained
recognition
as
important
cellular
signals.
However,
their
detection
remains
a
significant
challenge
due
to
the
chemical
lability
of
ester
bond.
This
is
case
even
for
long-known
such
ADP-ribosylation
on
aspartate
glutamate,
whose
role
in
PARP1
signaling
has
recently
been
questioned.
Here,
we
present
easily
implementable
methods
preserving
ester-linked
modifications.
When
combined
with
specific
sensitive
modular
antibody
mass
spectrometry,
these
approaches
reveal
DNA
damage-induced
aspartate/glutamate
mono-ADP-ribosylation.
previously
elusive
signal
represents
an
initial
wave
signaling,
contrasting
more
enduring
nature
Unexpectedly,
show
that
poly-ADP-ribose
hydrolase
PARG
capable
reversing
mono-ADP-ribosylation
cells.
Our
methodology
enables
broad
investigations
various
writers
and,
illustrated
here
noncanonical
it
paves
way
exploring
other
emerging
BioEssays,
Journal Year:
2024,
Volume and Issue:
46(3)
Published: Jan. 21, 2024
Abstract
Protein
post‐translational
modifications
(PTMs)
play
a
crucial
role
in
all
cellular
functions
by
regulating
protein
activity,
interactions
and
half‐life.
Despite
the
enormous
diversity
of
modifications,
various
PTM
systems
show
parallels
their
chemical
catalytic
underpinnings.
Here,
focussing
on
that
involve
addition
new
elements
to
amino‐acid
sidechains,
I
describe
historical
milestones
fundamental
concepts
support
current
understanding
PTMs.
The
survey
covers
selected
key
research
programmes,
including
study
phosphorylation
as
regulatory
switch,
ubiquitylation
degradation
signal
histone
functional
code.
contribution
techniques
for
studying
PTMs
is
also
discussed.
central
part
essay
explores
shared
principles
strategies
observed
across
diverse
systems,
together
with
mechanisms
substrate
selection,
reversibility
erasers
recognition
reader
domains.
Similarities
basic
mechanism
are
highlighted
implications
final
dedicated
evolutionary
trajectories
beginning
possible
emergence
context
rivalry
prokaryotic
world.
Together,
provides
unified
perspective
world
major
modifications.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: April 16, 2024
Poly(ADP-ribosyl)ation
(PARylation),
catalyzed
by
poly(ADP-ribose)
polymerases
(PARPs)
and
hydrolyzed
glycohydrolase
(PARG),
is
a
kind
of
post-translational
protein
modification
that
involved
in
various
cellular
processes
fungi,
plants,
mammals.
However,
the
function
PARPs
plant
pathogenic
fungi
remains
unknown.
The
present
study
investigated
roles
mechanisms
FonPARP1
watermelon
Fusarium
wilt
fungus
oxysporum
f.
sp.
niveum
(
Fon
).
has
single
PARP
one
PARG
FonPARG1.
an
active
contributes
to
pathogenicity
through
regulating
its
invasive
growth
within
while
FonPARG1
not
required
for
pathogenicity.
A
serine/threonine
kinase,
FonKin4,
was
identified
as
FonPARP1-interacting
partner
LC–MS/MS.
FonKin4
vegetative
growth,
conidiation,
macroconidia
morphology,
abiotic
stress
response
.
S_TKc
domain
sufficient
both
enzyme
activity
phosphorylates
vitro
enhance
polymerase
activity;
however,
does
PARylate
FonKin4.
These
results
establish
FonKin4-FonPARP1
phosphorylation
cascade
positively
highlights
importance
PARP-catalyzed
PARylation
other
fungi.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 9, 2024
SARS-CoV-2
continues
to
pose
a
threat
public
health.
Current
therapeutics
remain
limited
direct
acting
antivirals
that
lack
distinct
mechanisms
of
action
and
are
already
showing
signs
viral
resistance.
The
virus
encodes
an
ADP-ribosylhydrolase
macrodomain
(Mac1)
plays
important
role
in
the
coronaviral
lifecycle
by
suppressing
host
innate
immune
responses.
Genetic
inactivation
Mac1
abrogates
replication
Journal of Fungi,
Journal Year:
2025,
Volume and Issue:
11(1), P. 29 - 29
Published: Jan. 3, 2025
ADP-ribosylation
is
a
reversible
modification
of
proteins
and
nucleic
acids,
which
controls
major
cellular
processes,
including
DNA
damage
repair,
cell
proliferation
differentiation,
metabolism,
stress,
immunity
in
plants
animals.
The
involvement
the
life
cycle
Dictyostelium
some
filamentous
fungi
has
also
been
demonstrated.
However,
role
this
process
pathogenic
oomycetes
never
addressed.
Here,
we
show
that
Phytophthora
infestans
genome
contains
two
PARP-like
protein
genes
(PiPARP1
PiPARP2),
provide
evidence
PARylation
activity
for
one
them
(PiPARP2).
Using
dsRNA-mediated
RNA
silencing
PiPARP2
gene
chemical
(pharmacological)
inhibition
PARP
by
3-aminobenzamide
(3AB)
inhibitor,
demonstrate
critical
functional
mycelium
growth.
Virulence
test
on
detached
leaves
suggests
an
important
host
plant
colonisation
pathogenesis.
On
practical
level,
our
data
suggest
targeting
system
may
constitute
novel
powerful
approach
management
diseases.
SARS-CoV-2
continues
to
pose
a
threat
public
health.
Current
therapeutics
remain
limited
direct
acting
antivirals
that
lack
distinct
mechanisms
of
action
and
are
already
showing
signs
viral
resistance.
The
virus
encodes
an
ADP-ribosylhydrolase
macrodomain
(Mac1)
plays
important
role
in
the
coronaviral
lifecycle
by
suppressing
host
innate
immune
responses.
Genetic
inactivation
Mac1
abrogates
replication
vivo
potentiating
However,
it
is
unknown
whether
this
can
be
achieved
pharmacologic
inhibition
therefore
exploited
therapeutically.
Here
we
report
potent
selective
lead
small
molecule,
AVI-4206,
effective
model
infection.
Cellular
models
indicate
AVI-4206
has
high
target
engagement
weakly
inhibit
gamma
interferon-
catalytic
activity-dependent
manner;
stronger
antiviral
effect
for
observed
human
airway
organoids.
In
animal
severe
infection,
reduces
replication,
potentiates
responses,
leads
survival
benefit.
Our
results
provide
pharmacological
proof
concept
valid
therapeutic
via
novel
immune-restoring
mechanism
could
potentially
synergize
with
existing
therapies
targeting
distinct,
essential
aspects
life
cycle.
This
approach
more
widely
used
other
macrodomains
develop
beyond
COVID-19.