Briefings in Bioinformatics,
Год журнала:
2024,
Номер
26(1)
Опубликована: Ноя. 22, 2024
Abstract
Computational
prediction
of
nucleic
acid-binding
residues
in
protein
sequences
is
an
active
field
research,
with
over
80
methods
that
were
released
the
past
2
decades.
We
identify
and
discuss
87
sequence-based
predictors
include
dozens
recently
published
are
surveyed
for
first
time.
overview
historical
progress
examine
multiple
practical
issues
availability
impact
predictors,
key
features
their
predictive
models,
important
aspects
related
to
training
assessment.
observe
decade
has
brought
increased
use
deep
neural
networks
language
which
contributed
substantial
gains
performance.
also
highlight
advancements
vital
challenging
cross-predictions
between
deoxyribonucleic
acid
(DNA)-binding
ribonucleic
(RNA)-binding
targeting
two
distinct
sources
binding
annotations,
structure-based
versus
intrinsic
disorder-based.
The
trained
on
structure-annotated
interactions
tend
perform
poorly
disorder-annotated
vice
versa,
only
a
few
target
well
across
both
annotation
types.
significant
problem,
some
DNA-binding
or
RNA-binding
indiscriminately
predicting
Moreover,
we
show
web
servers
cited
substantially
more
than
tools
without
implementation
no
longer
working
implementations,
motivating
development
long-term
maintenance
servers.
close
by
discussing
future
research
directions
aim
drive
further
this
area.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(2), С. 1178 - 1178
Опубликована: Янв. 18, 2024
Global
climate
change
has
caused
severe
abiotic
and
biotic
stresses,
affecting
plant
growth
food
security.
The
mechanical
understanding
of
stress
responses
is
critical
for
achieving
sustainable
agriculture.
Intrinsically
disordered
proteins
(IDPs)
are
a
group
without
unique
three-dimensional
structures.
environmental
sensitivity
structural
flexibility
IDPs
contribute
to
the
developmental
plasticity
sessile
plants
deal
with
challenges.
This
article
discusses
roles
various
in
tolerance
resistance,
describes
current
mechanistic
insights
into
unstructured
such
as
disorder-to-order
transition
adopting
secondary
structures
interact
specific
partners
(i.e.,
cellular
membranes,
membrane
proteins,
metal
ions,
DNA),
elucidates
liquid–liquid
phase
separation
driven
by
protein
disorder
responses.
By
comparing
IDP
studies
animal
systems,
this
provides
conceptual
principles
adaptation,
reveals
research
gaps,
advises
on
future
direction.
highlighting
relevant
unanswered
questions
aims
encourage
more
these
emerging
topics
understand
mechanisms
action
behind
their
resistance
phenotypes.
Repetitive
DNA
make
up
a
considerable
fraction
of
most
eukaryotic
genomes.
In
fish,
transposable
element
(TE)
activity
has
coincided
with
rapid
species
diversification.
Here,
we
annotated
the
repetitive
content
in
100
genome
assemblies,
covering
major
branches
diverse
lineage
teleost
fish.
We
investigated
if
TE
correlates
family
level
net
diversification
rates
and
found
support
for
weak
negative
correlation.
Further,
demonstrated
that
proportion
size,
but
not
to
short
tandem
repeats
(STRs),
which
implies
independent
evolutionary
paths.
Marine
freshwater
fish
had
large
differences
STR
content,
extreme
propagation
detected
genomes
codfish
Atlantic
herring.
Such
high
density
STRs
is
likely
increase
mutational
load,
propose
could
be
counterbalanced
by
fecundity
as
seen
codfishes
Proteins
with
internal
repeats
(PIRs)
are
the
second
most
abundant
class
of
fungal
cell
wall
resident
proteins.
In
yeasts,
PIRs
preserve
stability
under
stressful
conditions.
They
characterized
by
conserved
N‐terminal
amino
acid
sequences
repeated
in
tandem
(PIR
motifs),
and
a
cysteine
(Cys)‐rich
C‐terminal
domain.
have
been
identified
several
filamentous
fungi
genomes;
however,
they
not
studied
beyond
yeasts.
this
work,
diversity,
evolution,
biological
role
PIRs,
particular
focus
on
new
class,
was
addressed.
Bioinformatic
inference
indicated
were
an
innovation
Ascomycota.
Predicted
clustered
two
main
groups:
classical
yeasts
(N‐terminal
PIR
motifs;
Cys‐rich
domain),
from
inverted
architecture
domain;
which
could
harbor
additional
glycosylphosphatidylinositol
(GPI)
addition‐signals.
As
representatives
group,
Neurospora
crassa
(Nc)
PIR‐1
(NCU04033)
PIR‐2
(NCU07569)
studied.
Confocal
microscopy
eGFP‐labeled
Nc
revealed
accumulate
apical
plugs;
additionally,
requires
Kex2
processing
site
for
correct
maturation
harbors
predicted
GPI
modification
signal.
Moreover,
Δpir‐1
Δpir‐2
single
mutants
showed
growth
rate
similar
to
that
wild‐type
(WT),
but
double
mutant
/
grew
significantly
slower.
Similarly,
mildly
sensitive
calcofluor
white,
although
Δ
pir‐1
/Δ
pir‐2
severely
impaired.
Despite
PIR‐2,
maintain
as
stabilizers
like
yeast
PIRs.
Summary
Repetitive
DNA
is
a
feature
of
all
organisms,
ranging
from
archaea
and
plants
to
humans.
repeats
can
be
seen
both
in
coding
noncoding
regions
the
genome.
Due
recurring
nature
sequences,
simple
tend
more
prone
errors
during
replication
repair,
resulting
variability
their
unit
length.
This
sequence
led
use
as
molecular
markers
for
mapping
traits
diverse
organisms.
Advances
genomics,
ever‐reducing
costs
genome
sequencing
have
empowered
us
assess
functional
impacts
repeats.
The
repeat
lengths
cause
phenotypic
differences
depending
on
where
they
are
present
Variability
length
genes
results
poly
amino
acid
stretches
that
appear
interfere
with
protein
function,
including
perturbation
protein–protein
interactions
impacts.
These
often
common
allelic
variations
significantly
impact
evolutionary
dynamics.
In
extreme
situations,
undergo
massive
expansions
outliers.
Repeat
underlie
several
genetic
defects
diseases
review
systematically
analyses
tandem
plants,
role
development
environmental
response
adaptation
plants.
We
identify
synthesise
emerging
themes,
differentiate
expansions,
argue
many
repeat‐associated
phenotypes
yet
discovered.
emphasise
underexplored
immense
potential
this
area
research,
particularly
suggest
ways
which
achieved
how
it
might
contribute
evolution
agricultural
productivity.
Biomolecules,
Год журнала:
2024,
Номер
14(8), С. 944 - 944
Опубликована: Авг. 3, 2024
Short
tandem
repeat
(STR)
variation
is
rarely
explored
as
a
contributor
to
adaptive
evolution.
An
intriguing
mechanism
involving
STRs
suggests
that
function
“tuning
knobs”
of
adaptation
whereby
stepwise
changes
in
STR
allele
length
have
effects
on
phenotypes.
Previously,
we
tested
the
predictions
knob”
model
at
gene
expression
level
by
conducting
an
RNA-Seq
experiment
natural
populations
common
sunflower
(Helianthus
annuus
L.)
transecting
well-defined
cline
from
Kansas
Oklahoma.
We
identified
479
with
significant
(eSTRs).
In
this
study,
expanded
range
further
north
and
south
focal
used
targeted
approach
study
relationship
between
five
selected
eSTRs.
Seeds
96
individuals
six
Nebraska
Texas
were
grown
garden.
The
genotyped
eSTRs,
was
quantified
qRT-PCR.
Linear
regression
models
eSTR
comp26672
significantly
correlated
expression.
Further,
latitude
across
Texas.
locus
located
CHUP1
gene,
associated
chloroplast
movement
response
light
intensity,
which
potential
role
for
locus.
Collectively,
our
results
show
consistent
some
eSTRs
broad
geographical
suggest
may
contribute
traits
sunflower.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(5), С. 2994 - 2994
Опубликована: Март 5, 2024
Tandem
repeats
(TRs)
in
protein
sequences
are
consecutive,
highly
similar
sequence
motifs.
Some
types
of
TRs
fold
into
structural
units
that
pack
together
ensembles,
forming
either
an
(open)
elongated
domain
or
a
(closed)
propeller,
where
the
last
unit
ensemble
packs
against
first
one.
Here,
we
examine
TR
proteins
(TRPs)
to
see
how
their
sequence,
structure,
and
evolutionary
properties
favor
them
for
function
as
mediators
interactions.
Our
observations
suggest
TRPs
bind
other
using
large,
structured
surfaces
like
globular
domains;
particular,
open-structured
ensembles
favored
by
flexible
termini
possibility
tightly
coil
targets.
While,
intuitively,
open
seem
prone
evolve
due
potential
accommodate
insertions
deletions
units,
these
events
unexpectedly
rare,
suggesting
they
advantageous
emergence
ancestral
but
early
fixed.
We
hypothesize
flexibility
makes
it
easier
further
adapt
interact
with
them,
which
would
explain
large
number
provide
insight
make
scaffolds
alternative
complexes
organize
genes,
RNA
proteins.