The researchers found that the ability to
control gene activity allows Ikaros to act as a master regulator of the function of blood cells.
Methylations are chemical changes that
control gene activity, that is, whether they are active or not.
In the Nature papers, the researchers compared gene transcription, chromatin modification and other processes that
control gene activity in a wide range of mouse and human tissues and cell types.
The scientists found that, in general, the systems that are used to
control gene activity have many similarities in mice and humans, and have been conserved, or continued, through evolutionary time.
Transcription factors are proteins that help
control gene activity, usually turning it up a notch or two.
For more than a decade, the husband - and - wife team has been investigating how a large protein complex called SAGA, which helps
control gene activity in organisms from yeast to humans, influences developmental processes.
Scientists have known for years that the genome is riddled with sequences that
control gene activity and is not just made up of genes.
Just as engineers rearrange capacitors and resistors to create different electric circuits, researchers can arrange gene promoters and repressors — stretches of DNA that
control gene activity — to create gene circuits with different properties.
Compared with living people, Neandertals and ancient Siberians known as Denisovans had slightly different patterns of DNA methylation — a chemical modification of DNA that doesn't change the information in genes but helps
control gene activity.
The finding could reveal much about how cells
control gene activity, and also illuminate cancer, multiple sclerosis, and other diseases spurred by faulty gene expression.
Now, Shannon Xu, together with Gantz and Bier, employ CRISPR / Cas9 to edit gene regulatory elements in their native genomic environments, revealing new fundamental mechanisms that
control gene activity, as described Feb. 6 in eLife.
The switches that
control gene activity are located here.
Far from being junk, it's where molecular switches that help
control gene activity are located.
«The elephant results revealed noncoding sequences in the human genome that we predict may
control gene activity and reduce the formation of mutations and cancer.»
They discovered that genetic variation influencing a person's risk for multiple sclerosis, rheumatoid arthritis, and type 1diabetes is more likely to
control gene activity in T cells than in monocytes.
The new method may make some types of gene therapy easier and could be a boon for researchers hoping to
control gene activity in animals, scientists say.
For my dissertation, I studied the fundamental mechanisms that
control gene activity in plants.
The project uncovered 4 million spots in our DNA that act as switches
controlling gene activity.
Though this study doesn't yet identify the mechanism that
controls gene activity for generations after a famine, the findings build a foundation to do so, Baugh said.
In a pioneering study, he applied these tools to a genome - wide study of disease - related changes in the epigenome — the layer atop the genome that
controls gene activity and is altered by the environment — of immune cells isolated from patients with asthma.
Not exact matches
They asked the question, What
controls the
activity of a single
gene, turning it on or off?
But it is not actually the crucial question, which is, What
controls the
activity of the complex interacting set of
genes, which produces a nerve cell or a muscle cell?
What all these have in common is that, without any central
control, individual units (
genes, cells neurons or workers) respond to simple, local information, in ways that allow the whole system (cells, brains, organisms or colonies) to function: the appropriate number of units performs each
activity at the appropriate time.
These changes, known as epigenetic modifications,
control the
activity of our
genes without changing the actual DNA sequence.
The brainlike structures created from cells taken from autistic children showed increased
activity in
genes that
control brain - cell growth and development.
Every genome contains many thousands of short bits of DNA called «enhancers,» whose role is to
control the
activity of
genes.
By tracking
activity in almost all the
genes of a free - living archaeon — which, like a bacterium, is a prokaryote — Bonneau was recently able to piece together how the
genes affected one another's expression, enabling him to map the organism's «
control circuit» as if it were a machine.
This bundling of DNA acts as a switchboard for
controlling genes»
activity and directs a cell's complex molecular machinery.
Other techniques exist for remotely
controlling the
activity of cells or the expression of
genes in living animals.
Many of the additional 38 missing
genes looked like they coded for proteins involved in
controlling the
activity of other
genes.
Berninger and others have previously shown that Sox2, Ascl1, and other transcription factors — proteins that bind to specific DNA sequences to
control the
activity of
genes — can induce the nonneuronal «support cells» known as glia to turn into neurons.
Within the duplicate regions, Carmona - Mora and her colleagues discovered many switches, known as enhancers, important for
controlling activity of
genes.
We know that Hox
genes encode transcription factors that
control the
activity of other
genes, but we found that digit - innervating motor neurons also express other
genes, such as FIGN and CNEP4], and we still don't know the function of any of these other
genes.
Significantly, treatment with 6AN specifically decreased the
activity of
genes with malignant, cancer - spreading functions, like cell cycle
control and DNA repair.
«Previous techniques that have been used to investigate DNA
control sequences usually rely on sorting cells one by one and measuring
gene activity in each of them,» says Dr Eva Yus, lead author of the paper.
Publishing their findings in the open - access journal Nature Communications, the researchers discovered DNA sequences for «
control dials» that consistently produce very high levels of
gene activity.
Optogenetic methods and tools have evolved fast, and in addition to be able to
control cellular
activity, researchers can now
control the
activity of
gene function.
But as you said, as an individual eats a high - fat diet or is exposed to other types of environmental exposures, the ability of the liver to adapt involves turning on and turning off certain liver
genes to
control the liver's
activity, and that's mediated through these epigenetic mechanisms that modify the
activity of established liver
genes.
«Because many broadly expressed
genes that play key roles in essential cellular functions are under the
control of cell - specific enhancers, the ability to affect enhancer function by knocking down eRNAs could potentially provide a new strategy for altering
gene expression in vivo in a cell - specific manner,» said Glass, noting that in his research, anti-sense oligonucleotides were developed in conjunction with Isis Pharmaceuticals, which suppressed enhancer
activity and reduced expression in nearby
genes.
When these birds sing, the
activity of a master
gene called FoxP2 declines in a key region of the brain involved in vocal
control known as Area X.
Nestler: It's, to a first level of approximation, it's simple and straightforward, that there are a set number of modifications that could be made to the DNA itself or to the proteins that bind to DNA and
control its structure, and
activity and that those small number of modifications either turn a
gene on or off.
The pair of studies bring renewed focus to the epigenetics of T cells — the multilayered system of molecular switches, accelerators, and throttles that
controls the
activity of
genes.
Scientists of the Transfaculty Research Platform «Molecular and Cognitive Neurosciences» (MCN) at the University of Basel and the Psychiatric University Clinics have now described a network of
genes that
controls fundamental properties of neurons and is related to working memory, brain
activity and schizophrenia.
Basel scientists have now identified a network of
genes that
controls fundamental properties of neurons and is important for human brain
activity, memory and the development of schizophrenia.
These Hox
genes control the
activity of a multitude of other
genes that are responsible for the early development of an organism.
More analysis showed that altering Cdk5
activity changed the level of several groups of
genes that were also affected by aging, including those that
control immunity, energy, and antioxidant
activity.
This result reflected earlier findings that ILC and T cell subclasses produce similar sets of cytokines, but also revealed differences in how the two cell types
control the
activities of these key immune response
genes.
Many researchers think that it participates in
controlling the
activities of
genes and in helping the 1 metre of DNA present in each cell to twist and pack itself into the cell's minute nucleus.
Blau's group found that the daily changes in Rho1
activity are
controlled by rhythms in transcription of a
gene very similar to human Puratrophin - 1.
Much media attention has focused on a company's ability to
control all
activities related to a patented
gene.