Non-coding variants impact cis-regulatory coordination in a cell type-specific manner
Genome biology,
Journal Year:
2024,
Volume and Issue:
25(1)
Published: July 18, 2024
Abstract
Background
Interactions
among
cis
-regulatory
elements
(CREs)
play
a
crucial
role
in
gene
regulation.
Various
approaches
have
been
developed
to
map
these
interactions
genome-wide,
including
those
relying
on
interindividual
epigenomic
variation
identify
groups
of
covariable
regulatory
elements,
referred
as
chromatin
modules
(CMs).
While
CM
mapping
allows
investigate
the
relationship
between
modularity
and
expression,
computational
principles
used
for
identification
vary
their
application
outcomes.
Results
We
comprehensively
evaluate
streamline
existing
tools
present
guidelines
optimal
utilization
epigenome
data
from
diverse
population
individuals
assess
coordination
across
human
genome.
showcase
effectiveness
our
recommended
practices
by
analyzing
distinct
cell
types
demonstrate
type
specificity
CRE
CMs
relevance
expression.
Integration
genotype
information
revealed
that
many
non-coding
disease-associated
variants
affect
activity
type-specific
manner
affecting
binding
transcription
factors.
provide
example
cases
illustrate
detail
how
can
be
deconstruct
GWAS
loci,
variable
expression
surface
receptors
immune
cells,
reveal
genetic
impact
prognostic
markers
chronic
lymphocytic
leukemia.
Conclusions
Our
study
presents
an
strategy
reveals
capture
CREs
its
Non-coding
disrupt
this
coordination,
we
highlight
may
lead
disease
predisposition
manner.
Language: Английский
Identifying genetic variants associated with chromatin looping and genome function
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Sept. 18, 2024
Abstract
Here
we
present
a
comprehensive
HiChIP
dataset
on
naïve
CD4
T
cells
(nCD4)
from
30
donors
and
identify
QTLs
that
associate
with
genotype-dependent
and/or
allele-specific
variation
of
contacts
defining
loops
between
active
regulatory
regions
(iQTLs).
We
observe
substantial
overlap
iQTLs
previously
defined
eQTLs
histone
QTLs,
an
enrichment
for
fine-mapped
GWAS
variants.
Furthermore,
describe
distinct
subset
nCD4
iQTLs,
which
the
significant
chromatin
in
are
translated
into
eQTL
trends
cell
memory
subsets.
Finally,
define
connectivity-QTLs
as
significantly
associated
concordant
changes
over
broad
genomic
region
(e.g.,
SNP
RNASET2
locus).
Our
results
demonstrate
importance
complementary
modality
QTL
mapping
their
power
identifying
uncharacterized
linked
to
cell-specific
gene
expression
connectivity.
Language: Английский
Non-coding variants impactcis-regulatory coordination in a cell type-specific manner
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 11, 2023
Abstract
BACKGROUND
Interactions
among
cis
-regulatory
elements
(CREs)
play
a
crucial
role
in
gene
regulation.
Various
approaches
have
been
developed
to
map
these
interactions
genome-wide,
including
those
relying
on
interindividual
epigenomic
variation
identify
groups
of
covariable
regulatory
elements,
referred
as
chromatin
modules
(CMs).
While
CM
mapping
allows
investigate
the
relationship
between
modularity
and
expression,
computational
principles
used
for
identification
vary
their
application
outcomes.
RESULTS
We
comprehensively
evaluate
streamline
existing
tools
present
guidelines
optimal
utilization
epigenome
data
from
diverse
population
individuals
assess
coordination
across
human
genome.
showcase
effectiveness
our
recommended
practices
by
analysing
distinct
cell
types
demonstrate
type-specificity
CRE
CMs
relevance
expression.
Integration
genotype
information
revealed
that
many
non-coding
disease-associated
variants
affect
activity
type-specific
manner
affecting
binding
transcription
factors.
provide
example
cases
illustrate
detail
how
can
be
deconstruct
GWAS
loci,
understand
variable
expression
surface
receptors
immune
cells
reveal
genetic
impact
prognostic
markers
chronic
lymphocytic
leukaemia.
CONCLUSIONS
Our
study
presents
an
strategy
mapping,
reveals
capture
CREs
its
Non-coding
disrupt
this
coordination,
we
highlight
may
lead
disease
predisposition
manner.
Language: Английский