The critter's secret weapon is an overactive
version of the gene for a protein — Wnt10b — that regulates the formation of flab.
Carrying a particular
version of the gene for apolipoprotein E (APOE) is the major known genetic risk factor for the sporadic, late - onset form of Alzheimer's disease, but exactly how that variant confers increased risk has been controversial among researchers.
One French study involving nonobese diabetics found that
a version of a gene for a protein that transports zinc in the pancreas increased the risk of this disease.
Thanks to Mendelian inheritance, offspring carry either mom or dad's
version of the gene for, say, digesting lactose.
We found that the bacterium had to have a normal
version of the gene for it to be transmitted.
Not exact matches
«Ninety five percent
of the aromatic rice analyzed shared the same
version of the major
gene for fragrance found in Thai Jasmine rice,» says Dr. Melissa Fitzgerald, grain quality researcher at IRRI.
Los Baños, Philippines — The
version of the
gene primarily responsible
for the aroma in Thai Jasmine rice is found...
A synthetic
version of yeast chromosome III with every
gene tagged can substitute
for the original.
People who inherit a mutated
version of the ATF6
gene are born with a malformed or missing fovea, the eye region responsible
for sharp, detailed vision.
To generate the models, Jackson created two mutated
versions of the PrP - coding
gene by changing a single codon — one
of the three - nucleotide «words» in
genes that code
for the various amino acids in proteins.
Using a modified
version of the CRISPR genome - editing system, MIT researchers have developed a new way to screen
for genes that protect against specific diseases.
By splicing
genes for the original protein with ones that code
for proteins containing different instructions, the researchers created a modified
version of N - WASP.
Particular
versions of one such
gene, called CRH, were more common in people who had been abused as children but didn't suffer from depression as adults,
for instance.
The team sequenced the
gene that codes
for the NaV1.7 channel in mole rats, and compared it with SCN9A — a key
gene in the human
version of the channel.
So,
for example, just to say
for the sake
of argument, that there's a
gene that influences the width
of the birth canal, and lets say that some
versions of the
gene leave women more likely to have trouble giving birth, so that their children have loss
of oxygen and that could lead to changes in the brain that lead to lower intelligence scores.
Shatz got a hint when she looked up ailments associated with mutations in
genes coding
for the human
version of MHCI.
For more than 20 years, researchers have known that people who carry the E4
version of the APOE
gene are at increased risk
of developing Alzheimer's.
His trick was to insert the
gene coding
for CREB into a
version of the herpesvirus that can infect neurons without spreading to nearby cells.
All land vertebrates carry a
version of the FOXP2
gene, so some
of the Oxford researchers then teamed up with colleagues from the Max Planck Institute
for Evolutionary Anthropology in Germany to analyze what is unique about the variant in humans and to track how the
gene had evolved in our ancestors.
Two
genes are primarily responsible
for carbapenem - resistant
versions of these disease - causing bacteria.
For example, a researcher could modify a rat genome to contain a broken version of a gene necessary for female fertility, and introduce some of these rats to an isla
For example, a researcher could modify a rat genome to contain a broken
version of a
gene necessary
for female fertility, and introduce some of these rats to an isla
for female fertility, and introduce some
of these rats to an island.
And almost 90 percent
of urban swans had the same variant
of a
gene for dopamine transport, while just 60 percent
of rural birds had that
version.
Whether the offspring gets the vanilla
version of a
gene from a mother and the chocolate
version from the father or the other way around, the trait coded
for by the pair
of genes will look the same.
An earlier
version of his vaccine only partially weakened the parasite, meaning it could still cause malaria in rare cases, but Kappe believes his lab has since fully disabled the parasite by deleting three
genes crucial
for its development.
In addition to heart attack and stroke risk, Cipollone says that the two
versions of the
genes might account
for the fact that some patients do not respond to COX - 2 inhibitors, which are used to protect against plaque cracking.
When the scientists looked
for the human
version of the newly identified fly marker
for sleep deprivation, they found ITGA5 and realized it hadn't been among the human immune
genes they screened at the start
of the study.
Wellcome Trust Sanger Institute scientists and their collaborators have developed a new analysis tool that was able to show,
for the first time, which
genes were expressed by individual cells in different genetic
versions of a benign blood cancer.
Previous studies had shown that inherited mutations to the
gene that codes
for PINK1 can stop a person from making working
versions of the protein.
Auriel Willette, an assistant professor
of food science and human nutrition; and Joseph Webb, a graduate research assistant, found on average that Caucasians with one bad
version of the
gene — guanosine triphosphate cyclohydrolase - 1 or GCH1 — developed Parkinson's symptoms five years earlier, and had a 23 percent increased risk
for the disease.
At the time, scientists studying Icelandic horses known
for a special gait discovered that they, as well as American Standardbred horses used in harness racing, share a somewhat shortened
version of a
gene called DMRT3.
Yet even as teams developed the CRISPR / Cas9
gene - editing system
for biomedical and basic research purposes, multiple groups have been on the lookout
for better
versions of the molecular scalpel.
«If you, by chance, inherit the risk
version of this
gene from your mother, then you're at higher risk
for type 2 diabetes,» explained researcher Mete Civelek, PhD,
of the University
of Virginia School
of Medicine.
Just under half
of the Bajau carry the
version of this
gene that is associated with larger spleen, compared with 6 percent
of the Saluan and 3 percent
of Han Chinese (a population chosen
for comparison because they are not closely related to either group), he says.
They also say they are concerned about the antibiotic resistance marker
gene that the wheat contains, and assert that the researchers «are openly releasing a synthetic
version of a compound that... has had no long - term health safety tests whatsoever
for human consumption, or
for its impacts on non-target species.»
Reasoning that the female
version of L - opsin might also do the trick
for males, researchers from the University
of Washington used a harmless virus to carry the pigment
gene behind the monkeys» retinas.
For people with two «low»
versions of the
gene, that number jumped to 15.9 percent.
Then
for HARE5, the most active enhancer in an area
of the brain called the cortex, they made minigenes containing either the chimp or human
version of the enhancer linked to a «reporter»
gene that caused the developing mouse embryo to turn blue wherever the enhancer turned the
gene on.
A new variant
of the
gene - editing CRISPR / Cas9 system is safer and more specific than
versions previously used in early research towards a treatment
for Huntington's disease, shows research published today in Frontiers in Neuroscience.
The human
version of the FOXP2 (short
for fork - head box P2) differs from that
of the chimp (the closest living relative
of humans) in two places along the genetic code, causing differences in two amino acids in the protein coded by the
gene.
And researchers at Stanford University School
of Medicine report in Genome Research that they linked the evolution
of a
gene in the old platypus to a mutated
version in humans responsible
for moving the testes outside
of the body and into an external pouch, or scrotum.
For gene hunters, it's relatively straightforward to determine where a
version of a particular
gene lies on a given chromosome.
The
gene - by - hormone interaction's effect on circuit function was found only with one
of two
versions of the
gene that codes
for BDNF (brain - derived neurotrophic factor), a chemical messenger operating in the circuit.
They then looked
for DNA breaks associated with receptor
gene rearrangement by using a
version of the polymerase chain reaction that amplifies broken DNA.
The two groups, they found, had different
versions of a crucial
gene, one that coded
for a protein involved in pigmentation.
The group took the first step toward their goal
of a novel engineering strategy
for yeast by creating what is known as a cDNA library: a collection
of over 90 %
of the
genes from the genome
of baker's yeast (Saccharomyces cerevisiae), arranged within a custom segment
of DNA so that each
gene will be, in one
version, overactive within a yeast cell, and in a second
version, reduced in activity.
These studies frequently combine DNA from hundreds
of individuals to try to discern patterns
of inheritance in a population — what percentage carry a
version of a
gene that might predispose to heart attacks,
for example, and what percentage carry another, less harmful
version.
Might Neanderthals have benefited from gaining modern human DNA,
for example, in their
version of the FOXP2
gene?
To devise a potential new therapy, the investigators engineered a population
of neural stem cells to express a potent
version of a
gene called TRAIL, which codes
for a molecule that activates cell - death - inducing receptors found only on the surface
of cancer cells.
Importantly, about 70 percent
of LFS families have a mutation in their
version of the
gene TP53, which is the blueprint
for protein p53, well known by the nickname «the tumor suppressor.»
Another possibility was that all
of the diversity in the bacterial
genes is «neutral» — no particular
version of a
gene makes an organism more or less fit
for its environment.