Tag: "gene" at biology news
First all-African produced genetically engineered maize is resistant to maize streak virus
... took the opposite approach. They mutated a viral gene
that encodes a protein that the virus needs to replicate itself and inserted it into maize plants. When the virus infects one of these transgenic maize plants, the mutated protein, which is expressed at a high level, prevents the virus from replicat...
Size and positioning of floral anthers facilitates pollen collection by bees
... animals are also classified on the basis of their gene
sequences. These two areas of systematics often p...and plant biologists have begun to understand that gene
sequences alone cannot explain diversity. Within the last few years, scientists have begun to iden...
Size and positioning of floral anthers facilitates
... animals are also classified on the basis of their gene
sequences. These two areas of systematics often pr...and plant biologists have begun to understand that gene
sequences alone cannot explain diversity. Within the last few years, scientists have begun to identi...
Rapid evolution of defense genes in plants may produce hybrid incompatibility
.... Bomblies and Weigel found that the same type of gene
is involved in hybrid incompatibility in Arabidops...ishes two populations as different species is that gene
flow between them stops. However, this does not happen suddenly. Rather, it is a gradual process ...
A gene that protects from kidney disease
...) and the University of Michigan have discovered a gene
that protects us against a serious kidney disease.... Nature Genetics they report that mutations in the gene
cause nephronopthisis (NPHP) in humans and mice. NPHP is a disease marked by kidney degeneration dur...
Chronic fatigue -- clues in the blood
...lammation Research, has studied the differences in gene
expression patterns in the blood of people who eit.... The researchers examined six million pieces of gene
expression information for analysis in the project, known as the Dubbo Infection Outcomes Study. The...
Sea anemone genome provides new view of our multi-celled ancestors
...e completely novel - we can't identify any related gene
in non-animals. The other five percent were formed through substantial modifications to very ancient genes." The novel genes of the eumetazoa are involved, to a large degree, with conversation among cells. "In the early animals, cells figured out h...
Malaria-resistant mosquitoes battle disease with 'molecular warhead'
...at infects rodents, previously determined that the gene
for TEP1 occurs in two forms, or alleles. One, called TEP1r, occurs in mosquitoes that are resistant to malarial infection. Another, TEP1s, is found in mosquitoes that are vulnerable to infection. The TEP1r and TEP1s proteins are 93 percent geneti...
Amoebae control cheating by keeping it in the family
... example, a study on D. discoideum showed that one gene
governing cooperative behavior was also tied to re...ideum called "cheater A" that was missing a single gene
known to play roles in both group productivity and reproduction. On their own, cheater A mutants pro...
New 'asthma gene' could lead to new therapies
ANN ARBOR, Mich.---A gene
that is strongly associated with a risk of develop...ildren with this marker had higher levels of a new gene
called ORMDL3 in their blood, which occurs in higher amounts in children with asthma. The presence o...
Researchers identify genetic mutation that may alter tumor cell proliferation
...nnounced finding a novel recurring mutation of the gene
AKT1 in breast, colorectal and ovarian cancers. The altered form of AKT1 appears to cause tumor cell proliferation and may play a role in making cells resistant to certain types of therapies. The findings are reported in an advance online publication...
Fat kills cancer
...nd destroy tumors like tiny homing missiles. This gene
therapy approach is a novel way to attack small tu...ry and then used a retrovirus vector to insert the gene
cytosine deaminase into the cell. This gene
can convert a less toxic drug, 5-fluorocytosine (5-FC),...
Gene variations directly link inflammation to an increased risk for lung cancer
...te the response to inflammation. Variations in the gene
may lead to greater expression of the protein, which is more likely to turn on the cascade and sustain the damaging effects of inflammation. Over time, the constant damage of inflammation could lead to genetic damage and cancer, Engels said. The re...
Waging war on the deadliest superbug
... You need to be able to inactivate, knock-out, the gene
responsible, and then see if the bacterium can sti...o. Our breakthrough ClosTron technology now makes gene
knock-out very quick and easy. Once we know what factors are important we should be able to develop...
Researchers discover method for identifying how cancer evades the immune system
...or. Using real-time PCR (rtPCR), a high-speed gene
amplification technique, Epstein and his M.D./ Ph....n of immune cells, and over-production of B7-H4, a gene
whose protein product inhibits immune activation. The human colorectal cancers, however, showed vari...
JCI Table of Contents -- July 2, 2007
EDITOR'S PICK p53 gene
mutations and inflammation trigger skin cancer ...l disease. Mutations in the p53 tumor suppressor gene
have been implicated in tumor formation: some give rise to a loss-of-function whereas the majority o...
p53 gene mutations and inflammation trigger skin cancer
...l disease. Mutations in the p53 tumor suppressor gene
have been implicated in tumor formation: some give rise to a loss-of-function whereas the majority of mutations result in a gain-of-function. In the first of these two studies, Dennis Roop, Carlos Caulin, and colleagues from Baylor College of Medicin...
The Cancer Genome Atlas awards funds for technology development
...e new approaches for investigating allele-specific gene
expression patterns. Allele is a term used by rese...d changes in genomic regions that are important in gene
regulation, using small fragments of cancer tissue. The technology development efforts will influ...
M. D. Anderson team identifies new oncogene for brain cancer
HOUSTON -- An overexpressed gene
found at the scene of a variety of tumors is impli...NAS web site the week of July 2. Just because a gene
is associated with cancer doesnt mean that its actually causing cancer. In this paper we show for t...
Cloned pigs help scientists towards a breakthrough in Alzheimer's
...ics, Aarhus University and his group have made the gene
construct with the putative Alzheimer gene
and inserted into the somatic cells. These somatic cells were used for the nuclear transfer experime...
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