Polysaccharide sulfotransferases: the identification of putative sequences and respective functional characterisation
Essays in Biochemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 7, 2024
Abstract
The
vast
structural
diversity
of
sulfated
polysaccharides
demands
an
equally
diverse
array
enzymes
known
as
polysaccharide
sulfotransferases
(PSTs).
PSTs
are
present
across
all
kingdoms
life,
including
algae,
fungi
and
archaea,
their
sulfation
pathways
relatively
unexplored.
Sulfated
possess
anti-inflammatory,
anticoagulant
anti-cancer
properties
have
great
therapeutic
potential.
Current
identification
using
Pfam
has
been
predominantly
focused
on
the
glycosaminoglycan
(GAG)
because
pivotal
roles
in
cell
communication,
extracellular
matrix
formation
coagulation.
As
a
result,
our
knowledge
non-GAG
structure
function
remains
limited.
major
sulfotransferase
families,
Sulfotransfer_1
Sulfotransfer_2,
display
broad
homology
should
enable
capture
wide
assortment
but
limited
PST
sequence
annotation.
In
addition,
annotation
is
further
restricted
by
paucity
biochemical
analyses
PSTs.
There
now
high-throughput
robust
assays
for
such
colorimetric
PAPS
(3′-phosphoadenosine
5′-phosphosulfate)
coupled
assays,
Europium-based
fluorescent
probes
ratiometric
PAP
(3′-phosphoadenosine-5′-phosphate)
detection,
NMR
methods
activity
product
analysis.
These
techniques
provide
real-time
direct
measurements
to
enhance
functional
subsequent
analysis
tree
life
improve
putative
characterisation
function.
Improved
sequences
will
utility
biomedical
biotechnological
sectors.
Language: Английский
A Bacterial Sulfotransferase Catalyzes an Unusual Di‐Sulfation in Natural Products Biosynthesis
ChemBioChem,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 4, 2025
Sulfation
is
a
widely
used
strategy
in
nature
to
modify
the
solubility,
polarity,
and
biological
activities
of
molecules.
The
enzymes
catalyzing
sulfation,
sulfotransferases
(STs),
are
typically
highly
specific
single
sulfation
site
molecule.
Herein,
identification
characterization
sulfated
adipostatins
reported
reveals
novel
sulfotransferase,
AdpST,
which
responsible
for
di-sulfation
at
two
sites
adipostatins.
initial
bioinformatic
analysis
search
adipostatin
analogs
from
Streptomyces
davaonensis
DSM101723
identifies
adpST
3'-phosphoadenosine-5'-phosphosulfate
(PAPS)
biosynthetic
cassette,
co-clustered
with
adipostatin-encoding
type
III
polyketide
synthase.
Mono-
di-sulfated
discovered
extracts
S.
DSM101723,
whereas
bacterial
natural
products
has
not
been
reported.
Using
series
vivo
vitro
experiments,
it
confirmed
that
AdpST
solely
both
mono-
adipostatins,
catalytic
activity
identified
PAPS-dependent
STs
date.
It
further
demonstrated
dedicated
PAPS
cassette
improves
capacity.
Lastly,
determined
shares
similarity
small
group
uncharacterized
STs,
suggesting
presence
additional
unique
nature,
phylogenetically
distant
many
characterized
STs.
Language: Английский
Genome-wide identification and transcriptome-based expression profiling of Sulfotransferase superfamily genes in Mus musculus
Junaid Habib Khan,
No information about this author
Samra Farooq,
No information about this author
S Shafqat
No information about this author
et al.
Published: April 1, 2025
Language: Английский
A new type of sulfation reaction: C-sulfonation for α,β-unsaturated carbonyl groups by a novel sulfotransferase SULT7A1
PNAS Nexus,
Journal Year:
2024,
Volume and Issue:
3(3)
Published: Feb. 29, 2024
Abstract
Cytosolic
sulfotransferases
(SULTs)
are
cytosolic
enzymes
that
catalyze
the
transfer
of
sulfonate
group
to
key
endogenous
compounds,
altering
physiological
functions
their
substrates.
SULT
O-sulfonation
hydroxy
groups
or
N-sulfonation
amino
substrate
compounds.
In
this
study,
we
report
discovery
C-sulfonation
α,β-unsaturated
carbonyl
mediated
by
a
new
enzyme,
SULT7A1,
and
human
SULT1C4.
Enzymatic
assays
revealed
SULT7A1
is
capable
transferring
from
3′-phosphoadenosine
5′-phosphosulfate
α-carbon
carbonyl-containing
including
cyclopentenone
prostaglandins
as
representative
Structural
analyses
suggest
reaction
catalyzed
novel
mechanism
His
Cys
residues
in
active
site.
Ligand-activity
demonstrated
sulfonated
15-deoxy
prostaglandin
J2
exhibits
antagonist
activity
against
receptor
EP2
prostacyclin
IP.
Modification
via
prostaglandin-sulfonating
may
regulate
function
gut.
Discovery
will
broaden
spectrum
potential
substrates
SULTs.
Language: Английский
Functional divergence of conserved developmental plasticity genes between two distantly related nematodes
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 29, 2024
Abstract
Genes
diverge
in
form
and
function
multiple
ways
over
time;
they
can
be
conserved,
acquire
new
roles,
or
eventually
lost.
However,
the
way
genes
at
functional
level
is
little
understood,
particularly
plastic
systems.
We
investigated
this
process
using
two
distantly
related
nematode
species,
Allodiplogaster
sudhausi
Pristionchus
pacificus
.
Both
these
nematodes
display
environmentally-influenced
developmental
plasticity
of
mouth-form
feeding
structures.
This
phenotype
manipulated
by
growth
on
particular
diets,
making
them
ideal
traits
to
investigate
divergence
between
organisms.
Using
CRISPR-engineered
mutations
A.
genes,
we
demonstrate
examples
various
ancestral
regulate
how
roles
progressively
diverge.
examined
four
revealing
distinct
differences
their
conservation
regulating
mouth
both
species.
Specifically,
certain
retain
same
characteristics,
while
others
have
acquired
a
function.
Additionally,
functions
as
switch
which
completely
prevent
phenotype,
other
quantitative
effects,
with
knockouts
displaying
intermediate
phenotypes.
Remarkably,
despite
evolutionary
distance,
all
were
involved
regulation.
Finally,
gene
knock-out
mutants
engineered,
key
sulfatase-encoding
acting
downstream
others,
suggesting
play
major
role
plasticity.
Together,
study
represents
first
mutant-based
analysis
evolution
highly
diverged
offering
insights
into
genetic
mechanisms
underlying
phenotypic
evolution.
Article
Summary
While
well-studied
sequence
level,
resulting
consequences
are
less
known,
Here,
set
found
that
studied
control
species;
however,
strong
gene-specific
effects
even
novel
functions.
Thus,
there
spectrum
from
full
conservation,
partial
gain
function;
sulfation
showing
strongest
during
Language: Английский
Identification and Characterization of Two Aryl Sulfotransferases from Deep-Sea Marine Fungi and Their Implications in the Sulfation of Secondary Metabolites
Marine Drugs,
Journal Year:
2024,
Volume and Issue:
22(12), P. 572 - 572
Published: Dec. 20, 2024
Sulfation
plays
a
critical
role
in
the
biosynthesis
of
small
molecules,
regulatory
mechanisms
such
as
hormone
signaling,
and
detoxification
processes
(phase
II
enzymes).
The
sulfation
reaction
is
catalyzed
by
broad
family
enzymes
known
sulfotransferases
(SULTs),
which
have
been
extensively
studied
animals
due
to
their
medical
importance,
but
also
plant
key
processes.
Despite
identification
some
sulfated
metabolites
fungi,
underlying
fungal
remain
largely
unknown.
To
address
this
knowledge
gap,
we
conducted
comprehensive
search
available
genomes,
resulting
174
putative
SULT
genes
Ascomycota
phylum.
Phylogenetic
analysis
structural
modeling
revealed
that
these
SULTs
belong
aryl
sulfotransferase
family,
they
are
divided
into
two
potential
distinct
clusters
PAPS-dependent
within
kingdom.
from
marine
fungi
isolated
deep-sea
hydrothermal
vents,
Hortaea
werneckii
UBOCC-A-208029
(HwSULT)
Aspergillus
sydowii
UBOCC-A-108050
(AsSULT),
were
selected
representatives
each
cluster.
Recombinant
proteins
expressed
Escherichia
coli
biochemically
characterized.
HwSULT
demonstrated
high
versatile
activity,
while
AsSULT
appeared
more
substrate-specific.
Here,
was
used
sulfate
mycotoxin
zearalenone,
enhancing
its
cytotoxicity
toward
healthy
feline
intestinal
cells.
Language: Английский