Conservation and similarity of bacterial and eukaryotic innate immunity
Nature Reviews Microbiology,
Journal Year:
2024,
Volume and Issue:
22(7), P. 420 - 434
Published: Feb. 28, 2024
Language: Английский
Innate immunity: the bacterial connection
Trends in Immunology,
Journal Year:
2023,
Volume and Issue:
44(12), P. 945 - 953
Published: Nov. 1, 2023
Language: Английский
Multi-conflict islands are a widespread trend withinSerratiaspp
Thomas Cummins,
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S Garrett,
No information about this author
Tim R. Blower
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et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 28, 2024
SUMMARY
Bacteria
carry
numerous
anti-phage
systems
in
‘defence
islands’
or
hotspots.
Recent
studies
have
delineated
the
content
and
boundaries
of
these
islands
various
species,
revealing
instances
that
encode
additional
factors,
including
antibiotic
resistance,
stress
genes,
Type
VI
Secretion
System
(T6SS)-dependent
effectors,
virulence
factors.
Our
study
identifies
three
defence
Serratia
genus
with
a
mixed
cargo
systems,
factors
different
types
anti-bacterial
modules,
widespread
trend
co-accumulation
extends
beyond
T6SS-dependent
effectors
to
colicins
contact-dependent
inhibition
systems.
We
report
identification
four
distinct
system/subtypes,
previously
unreported
Toll/IL-1
receptor
(TIR)-domain-containing
system
population-wide
immunity,
two
loci
co-opting
predicted
T6SS-related
protein
for
phage
defence.
This
enhances
our
understanding
domains
can
be
co-opted
diverse
combinations
which
known
proteins
assembled,
resulting
highly
diversified
arsenal.
Language: Английский
Tracking of Ubiquitin Signaling through 3.5 Billion Years of Combinatorial Conjugation
A. N. Kaminskaya,
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A. S. Evpak,
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Alexey A. Belogurov
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et al.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(16), P. 8671 - 8671
Published: Aug. 8, 2024
Ubiquitination
is
an
evolutionary,
ancient
system
of
post-translational
modification
proteins
that
occurs
through
a
cascade
involving
ubiquitin
activation,
transfer,
and
conjugation.
The
maturation
this
has
followed
two
main
pathways.
first
the
conservation
universal
structural
fold
ubiquitin-like
proteins,
which
are
present
in
both
Archaea
Bacteria,
as
well
multicellular
Eukaryotes.
second
rise
complexity
superfamily
ligases,
conjugate
to
substrates,
terms
increase
number
enzyme
variants,
greater
variation
organization,
diversification
their
catalytic
domains.
Here,
we
examine
diversity
ubiquitination
among
different
organisms,
assessing
variety
key
domains
enzymes
itself.
Our
data
show
E2
ubiquitin-conjugating
metazoan
phyla
highly
conservative,
whereas
homology
E3
ligases
with
human
orthologues
gradually
decreases
depending
on
“molecular
clock”
timing
evolutionary
distance.
Surprisingly,
Chordata
Echinodermata,
diverged
over
0.5
billion
years
ago
during
Cambrian
explosion,
share
almost
same
humans
amino
acid
sequences
but
not
adaptor
proteins.
These
observations
may
suggest
that,
firstly,
already
existed
its
current
form
last
common
ancestor
was
generally
affected
by
purifying
selection
metazoans.
Secondly,
it
indicate
convergent
evolution
highlight
“upper
deck”
system,
plays
crucial
role
chordate
evolution.
Language: Английский