bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 30, 2023
Advances
in
genome
sequencing
and
bioinformatics
methods
have
identified
a
myriad
of
biosynthetic
gene
clusters
(BGCs)
encoding
uncharacterized
molecules.
By
mining
genomes
for
BGCs
containing
prevalent
peptide-binding
domain
used
the
biosynthesis
ribosomally
synthesized
post-translationally
modified
peptides
(RiPPs),
we
uncovered
new
class
involving
modifications
installed
by
cytochrome
P450,
multi-nuclear
iron-dependent
non-heme
oxidative
enzyme
(MNIO,
formerly
DUF692),
cobalamin-
radical
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(5), P. 1704 - 1728
Published: Jan. 1, 2023
Publication
of
the
E
Factor
drew
attention
to
problem
waste
in
chemicals
manufacture.
Thirty
yeas
later
it
is
abundantly
clear
that
underlying
cause
global
environmental
problems,
from
climate
change
plastic
pollution.
ACS Central Science,
Journal Year:
2023,
Volume and Issue:
9(5), P. 1008 - 1018
Published: April 24, 2023
The
domain
of
unknown
function
692
(DUF692)
is
an
emerging
family
post-translational
modification
enzymes
involved
in
the
biosynthesis
ribosomally
synthesized
and
post-translationally
modified
peptide
(RiPP)
natural
products.
Members
this
are
multinuclear
iron-containing
enzymes,
only
two
members
have
been
functionally
characterized
to
date:
MbnB
TglH.
Here,
we
used
bioinformatics
select
another
member
DUF692
family,
ChrH,
that
encoded
genomes
Chryseobacterium
genus
along
with
a
partner
protein
ChrI.
We
structurally
ChrH
reaction
product
show
enzyme
complex
catalyzes
unprecedented
chemical
transformation
results
formation
macrocycle,
imidazolidinedione
heterocycle,
thioaminals,
thiomethyl
group.
Based
on
isotopic
labeling
studies,
propose
mechanism
for
four-electron
oxidation
methylation
substrate
peptide.
This
work
identifies
first
SAM-dependent
catalyzed
by
complex,
further
expanding
repertoire
remarkable
reactions
these
enzymes.
three
currently
members,
suggest
be
called
non-heme
iron
dependent
oxidative
(MNIOs).
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: May 4, 2023
Multi-enzymatic
cascades
with
enzymes
arranged
in
close-proximity
through
a
protein
scaffold
can
trigger
substrate
channeling
effect,
allowing
for
efficient
cofactor
reuse
industrial
potential.
However,
precise
nanometric
organization
of
challenges
the
design
scaffolds.
In
this
study,
we
create
nanometrically
organized
multi-enzymatic
system
exploiting
engineered
Tetrapeptide
Repeat
Affinity
Proteins
(TRAPs)
as
scaffolding
biocatalysis.
We
genetically
fuse
TRAP
domains
and
program
them
to
selectively
orthogonally
recognize
peptide-tags
fused
enzymes,
which
upon
binding
form
spatially
metabolomes.
addition,
encodes
sites
reversibly
sequester
reaction
intermediates
like
cofactors
via
electrostatic
interactions,
increasing
their
local
concentration
and,
consequently,
catalytic
efficiency.
This
concept
is
demonstrated
biosynthesis
amino
acids
amines
using
up
three
enzymes.
Scaffolded
multi-enzyme
systems
present
5-fold
higher
specific
productivity
than
non-scaffolded
ones.
In-depth
analysis
suggests
that
NADH
between
assembled
enhances
overall
cascade
throughput
product
yield.
Moreover,
immobilize
biomolecular
on
solid
supports,
creating
reusable
heterogeneous
multi-functional
biocatalysts
consecutive
operational
batch
cycles.
Our
results
demonstrate
potential
TRAP-scaffolding
spatial-organizing
tools
increase
efficiency
cell-free
biosynthetic
pathways.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(19), P. 12436 - 12444
Published: Sept. 7, 2023
Designing
efficient
enzymes
is
a
formidable
challenge
at
the
forefront
of
modern
biocatalysis.
Here,
we
review
recent
developments
in
field
and
illustrate
how
interplay
between
computational
design
advanced
protein
engineering
has
given
rise
to
with
diverse
activities.
Natural
proteins
have
been
re-engineered
computationally
embed
designed
catalytic
sites,
affording
active
catalysts
that
can
be
optimized
through
laboratory
evolution
enhance
efficiency
selectivity.
Computational
tools
reliably
generate
stable
de
novo
shapes
backbone
geometries
beyond
those
found
nature,
which
serve
as
idealized
templates
for
hosting
sites.
Genetic
code
reprogramming
methods
used
introduce
additional
functional
elements
into
sites
expand
range
chemistries
accessible
designer
enzymes.
Finally,
emergence
powerful
based
on
deep
learning
promises
transformative
impact
by
greatly
increasing
speed
model
accuracy.
By
bringing
together
latest
experimental
enzyme
design,
are
optimistic
ambition
building
useful
biocatalysts
from
scratch
within
reach.
Chemical Communications,
Journal Year:
2023,
Volume and Issue:
59(49), P. 7518 - 7533
Published: Jan. 1, 2023
This
review
summarises
the
use
of
engineered
ketoreductases
(KREDS),
both
as
whole
microbial
cells
and
isolated
enzymes,
in
highly
enantiospecific
reduction
prochiral
ketones.
ACS Central Science,
Journal Year:
2024,
Volume and Issue:
10(5), P. 1022 - 1032
Published: April 11, 2024
Advances
in
genome
sequencing
and
bioinformatics
methods
have
identified
a
myriad
of
biosynthetic
gene
clusters
(BGCs)
encoding
uncharacterized
molecules.
By
mining
genomes
for
BGCs
containing
prevalent
peptide-binding
domain
used
the
biosynthesis
ribosomally
synthesized
post-translationally
modified
peptides
(RiPPs),
we
uncovered
new
compound
class
involving
modifications
installed
by
cytochrome
P450,
multinuclear
iron-dependent
non-heme
oxidative
enzyme
(MNIO,
formerly
DUF692),
cobalamin-
radical
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(7), P. 4536 - 4553
Published: March 12, 2024
A
revolution
in
the
field
of
biocatalysis
has
enabled
scalable
access
to
compounds
high
societal
values
using
enzymes.
The
construction
biocatalytic
routes
relies
on
reservoir
available
enzymatic
transformations.
review
uncharacterized
proteins
predicted
from
genomic
sequencing
projects
shows
that
a
treasure
trove
enzyme
chemistry
awaits
be
uncovered.
This
Review
highlights
transformations
discovered
through
various
genome
mining
methods
and
showcases
their
potential
future
applications
biocatalysis.
JACS Au,
Journal Year:
2023,
Volume and Issue:
3(9), P. 2413 - 2435
Published: Aug. 30, 2023
Building
bridges
among
different
types
of
catalysts
to
construct
cascades
is
a
highly
worthwhile
pursuit,
such
as
chemo-,
bio-,
and
chemo-bio
cascade
reactions.
Cascade
reactions
can
improve
the
reaction
efficiency
selectivity
while
reducing
steps
separation
purification,
thereby
promoting
development
"green
chemistry".
However,
compatibility
issues
in
pose
significant
constraints
on
this
field,
particularly
concerning
diverse
catalyst
types,
conditions,
rates.
Metal-organic
framework
micro/nano
reactors
(MOF-MNRs)
are
porous
crystalline
materials
formed
by
self-assembly
coordination
metal
sites
organic
ligands,
possessing
periodic
network
structure.
Due
uniform
pore
size
with
capability
controlling
selective
transfer
substances
well
protecting
active
organic-inorganic
parts
providing
reactive
microenvironment,
MOF-MNRs
have
attracted
attention
recent
years.
In
Perspective,
we
first
discuss
how
address
using
MOF-MNRs,
including
structural
design
synthetic
strategies.
Then
summarize
research
progress
various
Finally,
analyze
challenges
facing
potential
breakthrough
directions
opportunities
for
future.