SRC
homology
3
(SH3)
domains
are
critical
interaction
modules
that
orchestrate
the
assembly
of
protein
complexes
involved
in
diverse
biological
processes.
They
facilitate
transient
protein-protein
interactions
by
selectively
interacting
with
proline-rich
motifs
(PRMs).
A
database
search
revealed
298
SH3
221
human
proteins.
Multiple
sequence
alignment
is
useful
for
phylogenetic
analysis
and
determination
their
selectivity
towards
PRM-containing
peptides
(PRPs).
However,
a
more
precise
functional
classification
achieved
constructing
tree
only
from
PRM-binding
residues
using
existing
SH3-PRP
structures
biochemical
data
to
determine
specificity
within
each
10
families
particular
PRPs.
In
addition,
C-terminal
domain
RAS
activator
SOS1
covers
13
14
recognized
consensus
motifs,
encompassing
differential
PRP
pattern
among
all
families.
To
evaluate
binding
capabilities
affinities,
we
conducted
fluorescence
dot
blot
polarization
experiments
25
representative
various
PRPs
derived
SOS1.
Our
has
identified
45
pairs
affinities
ranging
0.2
125
micromolar
out
300
tested
potential
new
interactors
Furthermore,
it
establishes
framework
bridge
gap
between
provides
predictive
insights
into
PRMs
based
on
specifications.
This
novel
enhance
understanding
networks
mediated
SH3-PRM
be
utilized
as
general
approach
other
domain-peptide
interactions.
Cells,
Journal Year:
2024,
Volume and Issue:
13(3), P. 240 - 240
Published: Jan. 26, 2024
Melanoma
frequently
harbors
genetic
alterations
in
key
molecules
leading
to
the
aberrant
activation
of
PI3K
and
its
downstream
pathways.
Although
role
PI3K/AKT/mTOR
melanoma
progression
drug
resistance
is
well
documented,
targeting
pathway
showed
less
efficiency
clinical
trials
than
might
have
been
expected,
since
suppression
PI3K/mTOR
signaling
pathway-induced
feedback
loops
mostly
associated
with
compensatory
pathways
such
as
MAPK/MEK/ERK.
Consequently,
development
intrinsic
acquired
can
occur.
As
a
solid
tumor,
notorious
for
heterogeneity.
This
be
expressed
form
genetically
divergent
subpopulations
including
small
fraction
cancer
stem-like
cells
(CSCs)
non-cancer
stem
(non-CSCs)
that
make
most
tumor
mass.
Like
other
CSCs,
(MSCs)
are
characterized
by
their
unique
cell
surface
proteins/stemness
markers
In
addition
function
robust
marker
stemness
properties,
CD133
crucial
maintenance
properties
resistance.
Herein,
CD133-dependent
regulation
progression,
resistance,
recurrence
reviewed.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(3), P. 1932 - 1932
Published: Feb. 5, 2024
UBASH3A
and
UBASH3B
are
protein
families
of
atypical
tyrosine
phosphatases
that
function
as
regulators
various
cellular
processes
during
mammalian
development.
As
has
only
mild
phosphatase
activity,
its
regulatory
effects
based
on
the
phosphatase-independent
mechanisms.
On
contrary,
strong
suppression
receptor
signalling
is
mediated
by
Syk
Zap-70
kinases.
The
functions
particularly
evident
in
lymphoid
tissues
kidney
These
also
known
to
play
key
roles
autoimmunity
neoplasms.
However,
their
involvement
development
largely
unknown
discussed
this
review.
Cells,
Journal Year:
2024,
Volume and Issue:
13(2), P. 195 - 195
Published: Jan. 20, 2024
SRC
homology
3
(SH3)
domains
are
critical
interaction
modules
that
orchestrate
the
assembly
of
protein
complexes
involved
in
diverse
biological
processes.
They
facilitate
transient
protein–protein
interactions
by
selectively
interacting
with
proline-rich
motifs
(PRMs).
A
database
search
revealed
298
SH3
221
human
proteins.
Multiple
sequence
alignment
is
useful
for
phylogenetic
analysis
and
determination
their
selectivity
towards
PRM-containing
peptides
(PRPs).
However,
a
more
precise
functional
classification
achieved
constructing
tree
only
from
PRM-binding
residues
using
existing
domain–PRP
structures
biochemical
data
to
determine
specificity
within
each
10
families
particular
PRPs.
In
addition,
C-terminal
domain
RAS
activator
SOS1
covers
13
14
recognized
consensus
motifs,
encompassing
differential
PRP
pattern
among
all
families.
To
evaluate
binding
capabilities
affinities,
we
conducted
fluorescence
dot
blot
polarization
experiments
25
representative
various
PRPs
derived
SOS1.
Our
has
identified
45
pairs,
affinities
ranging
0.2
125
micromolar,
out
300
tested
potential
new
domain-SOS1
interactions.
Furthermore,
it
establishes
framework
bridge
gap
between
provides
predictive
insights
into
PRMs
based
on
specifications.
This
novel
enhance
understanding
networks
mediated
domain–PRM
be
utilized
as
general
approach
other
domain–peptide
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Dec. 5, 2024
The
internalization
of
Lactobacillus
johnsonii
N6.2
extracellular
vesicles
(EVs)
by
cells
results
in
a
significant
induction
the
2’,5’-oligoadenylate
synthetase
(OAS)
pathway.
It
also
induces
expression
IFI44L,
MX1,
MX2
and
DDX60
.
In
this
work,
we
evaluated
whether
antiviral
response
induced
L.
N6.2-derived
EVs,
has
an
inhibitory
effect
on
RNA
viral
insult
using
murine
norovirus
(MNV-1)
as
infection
model.
We
found
that
RAW
264.7
Macrophages
treated
with
EVs
significantly
decreased
levels
MNV-1
genome.
These
were
consistent
increase
Oas1b,
Oas2,
Oasl,
Mx1,
Mx2
Ifi44l
(6
hours
post
infection).
Out
six
proteins
enriched
SH3b2
domain
Sdp
was
only
protein
effector
molecule
able
to
recapitulate
activation
OAS
C57BL6
mice,
administration
live
N6.2,
Sdp-SH3b2/liposomes
titers
distal
ileum,
contrast
controls
PBS
liposomes
alone
did
not
affect
MNV-1.
establish
Sdp,
which
is
derived
can
orchestrate
control
infections
vivo