International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
26(1), P. 110 - 110
Published: Dec. 26, 2024
First
believed
to
be
a
simple
intermediary
between
the
information
encoded
in
deoxyribonucleic
acid
and
that
functionally
displayed
proteins,
ribonucleic
(RNA)
is
now
known
have
many
functions
through
its
abundance
intricate,
ubiquitous,
diverse,
dynamic
structure.
About
70–90%
of
human
genome
transcribed
into
protein-coding
noncoding
RNAs
as
main
determinants
along
with
regulatory
sequences
cellular
populational
biological
diversity.
From
nucleotide
sequence
or
primary
structure,
Watson–Crick
pairing
self-folding
secondary
compaction
via
longer
distance
non-Watson–Crick
interactions
tertiary
RNA
other
biopolymers
quaternary
metabolites
biomolecules
quinary
structure
plays
critical
role
RNA’s
lifecycle
from
transcription
decay
processes.
In
contrast
success
3-dimensional
protein
prediction
using
AlphaFold,
beyond
structures
remains
challenging.
However,
approaches
involving
machine
learning
artificial
intelligence,
sequencing
modifications,
structural
analyses
at
single-cell
intact
tissue
levels,
among
others,
provide
an
optimistic
outlook
for
continued
development
refinement
RNA-based
applications.
Here,
we
highlight
those
gene
therapy.
Nucleic Acids Research,
Journal Year:
2023,
Volume and Issue:
51(6), P. 2529 - 2573
Published: March 7, 2023
Eighteen
nucleic
acid
therapeutics
have
been
approved
for
treatment
of
various
diseases
in
the
last
25
years.
Their
modes
action
include
antisense
oligonucleotides
(ASOs),
splice-switching
(SSOs),
RNA
interference
(RNAi)
and
an
aptamer
against
a
protein.
Among
targeted
by
this
new
class
drugs
are
homozygous
familial
hypercholesterolemia,
spinal
muscular
atrophy,
Duchenne
dystrophy,
hereditary
transthyretin-mediated
amyloidosis,
chylomicronemia
syndrome,
acute
hepatic
porphyria,
primary
hyperoxaluria.
Chemical
modification
DNA
was
central
to
making
out
oligonucleotides.
Oligonucleotide
brought
market
thus
far
contain
just
handful
first-
second-generation
modifications,
among
them
2'-fluoro-RNA,
2'-O-methyl
phosphorothioates
that
were
introduced
over
50
years
ago.
Two
other
privileged
chemistries
2'-O-(2-methoxyethyl)-RNA
(MOE)
phosphorodiamidate
morpholinos
(PMO).
Given
their
importance
imparting
with
high
target
affinity,
metabolic
stability
favorable
pharmacokinetic
-dynamic
properties,
article
provides
review
these
use
therapeutics.
Breakthroughs
lipid
formulation
GalNAc
conjugation
modified
paved
way
efficient
delivery
robust,
long-lasting
silencing
genes.
This
account
state-of-the-art
oligo
hepatocytes.
The Journal of Experimental Medicine,
Journal Year:
2023,
Volume and Issue:
220(8)
Published: July 14, 2023
Nucleic
acid
sensing
is
a
central
process
in
the
immune
system,
with
far-reaching
roles
antiviral
defense,
autoinflammation,
and
cancer.
Z-DNA
binding
protein
1
(ZBP1)
sensor
for
double-stranded
DNA
RNA
helices
unusual
left-handed
Z
conformation
termed
Z-RNA.
Recent
research
established
ZBP1
as
key
upstream
regulator
of
cell
death
proinflammatory
signaling.
Recognition
Z-DNA/RNA
by
promotes
host
resistance
to
viral
infection
but
can
also
drive
detrimental
autoinflammation.
Additionally,
has
interesting
cancer
other
disease
settings
emerging
an
attractive
target
therapy.
Royal Society Open Science,
Journal Year:
2024,
Volume and Issue:
11(6)
Published: June 1, 2024
The
Zα
fold
specifically
binds
to
both
Z-DNA
and
Z-RNA,
left-handed
nucleic
acid
structures
that
form
under
physiological
conditions
are
encoded
by
flipons.
I
trace
the
back
unicellular
organisms
representing
all
three
domains
of
life
realm
giant
nucleocytoplasmic
DNA
viruses
(NCVs).
canonical
is
present
in
earliest
known
holozoan
symbiont
Capsaspora
owczarzaki
persists
vertebrates
some
invertebrates,
but
not
plants
or
fungi.
In
metazoans,
starting
with
porifera,
incorporated
into
double-stranded
RNA
editing
enzyme
ADAR
reflects
an
early
relationship
NCV.
vertebrates,
also
ZBP1
PKZ
proteins
recognize
host-derived
Z-RNAs
defend
against
modern-day
viruses.
A
related
fold,
likely
bind
Z-DNA,
thought
modulate
gene
expression,
including
a
subset
prokaryote
arsR
p15
(PC4)
family
algae.
Other
variants
probably
play
more
general
role
reinitiation
transcription
include
archaeal
human
factor
E
polymerase
3
subunit
C
proteins.
roles
immunity
underlie
natural
selection
Plant Biotechnology Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Summary
Z‐DNA
is
a
left‐handed
double
helix
form
of
DNA
that
believed
to
be
involved
in
various
transactions.
However,
comprehensive
investigations
aimed
at
global
profiling
landscapes
are
still
missing
both
humans
and
plants.
We
here
report
the
development
two
techniques:
anti‐Z‐DNA
antibody‐based
immunoprecipitation
followed
by
sequencing
(ZIP‐seq),
cleavage
under
targets
tagmentation
(CUT&TAG)
for
characterizing
nipponbare
rice
(
Oryza
sativa
L.,
Japonica).
found
Z‐DNA‐IP
+
(Z‐DNA
recognized
antibody)
exhibits
distinct
genomic
features
as
compared
−
not
antibody).
The
concomitant
presence
G‐quadruplexes
(G4s)
i‐motifs
(iMs)
may
promote
formation.
modifications
such
DNA‐6mA/‐4acC
generally
disfavours
formation,
while
like
DNA‐5mC
(CHH)
8‐oxodG
it,
highlighting
roles
base
modulating
Importantly,
located
transcription
start
sites
(TSSs)
enhances
gene
expression,
whereas
genic
regions
represses
underscoring
its
dual
regulating
expression
genes
fundamental
biological
functions
responses
salt
stress.
Furthermore,
play
role
transcriptional
initiation
termination
rather
than
elongation.
Finally,
promoters
correlated
with
coevolution
overlapping
genes,
thereby
domestication.
Consequently,
our
study
represents
pivotal
point
solid
foundation
reliably
launching
genome‐wide
Z‐DNA,
advancing
understanding
biology
plants
non‐plant
systems.
Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(5), P. 114221 - 114221
Published: May 1, 2024
ZBP1
is
an
interferon
(IFN)-induced
nucleic
acid
(NA)
sensor
that
senses
unusual
Z-form
NA
(Z-NA)
to
promote
cell
death
and
inflammation.
However,
the
mechanisms
dampen
activation
fine-tune
inflammatory
responses
are
unclear.
Here,
we
characterize
a
short
isoform
of
(referred
as
ZBP1-S)
intrinsic
suppressor
signaling
mediated
by
full-length
ZBP1.
Mechanistically,
ZBP1-S
depresses
ZBP1-mediated
competitive
binding
with
Z-NA
for
Zα
domains
Cells
from
mice
(Ripk1
Nucleic Acids Research,
Journal Year:
2025,
Volume and Issue:
53(5)
Published: Feb. 27, 2025
We
discovered
that
the
Z-form
DNA-RNA
hybrid
stabilized
by
methylated
CpG
repeats
impacts
on
initiation
and
elongation
of
Okazaki
fragments,
contributing
to
blocking
DNA
replication
at
first
time.
further
present
structure
using
NMR
spectroscopy
dynamic
computation,
revealing
molecular
mechanism
inhibition,
indicating
a
distinctive
zig-zag
strand
pattern
with
smaller
helical
diameter
(15
Å)
very
narrow
minor
groove
(8.3
plays
key
role
in
repression
toward
replication.