Un equipo de científicos del Instituto Médico Howard Hughes en la Universidad de Chicago ha encontrado que una ubicua proteína puede explicar cómo se llevan a cabo los cambios relativamente repentinos en la forma del cuerpo de una especie.
The most common genetic cause of infant mortality happens because cells cannot properly process messenger RNA. The search for drugs to correct this defect is underway.
HHMI investigators have found a cellular target of survival signals that can override programmed cell death.
Genetic studies have uncovered a host of new genes involved in the formation of spores in yeast. The studies may illuminate germ cell production in vertebrates.
HHMI researcher Leonard Zon leads a team that has cloned a zebrafish anemia gene, producing one of the first fish models of a human disease. The achievement opens a new avenue for studying the genetics of human diseases.
HHMI researchers show that ribozymes and enzymes are ready to perform their biological function as soon as they are produced.
The tumor suppressor p16 normally holds the growth-promoting molecule Cdk6 in check. New structural insights may explain how Cdk6 slips free from p16, promoting cancer development.
HHMI researchers produce the first glimpses of the molecular machinery that propels neurotransmitters into the synapse.
HHMI investigators have found another molecular landmark that points growing neurons to their proper destination in the brain or spinal cord.
Researchers report the first hard evidence that most cases of colon cancer arise when mutations in a genetic "master brake" help to switch on a well-known cancer-promoting gene.
Researchers used to identify important developmental genes one at a time. Now, a technique developed in Drosophila is taking wing, and hundreds of novel genes have been found.
Researchers find that a drug used to treat adult-onset diabetes may promote the formation of colorectal tumors.
The human immune system can recognize and destroy thousands of invaders. Did this diversity come about accidentally when a mobile piece of DNA inserted itself into the mammalian genome more than 450 million years ago?
Researchers discover new details about how cells monitor the signals that stimulate proliferation or shut down cell growth. Such signals can turn a normal cell into one that grows uncontrollably, the first step in the development of cancer.
Salt is poison for people with high blood pressure. Genetic studies are beginning to clarify who is at risk and why.
Scientists Determine Structure of HIV-1 Protein that Grasps Human Cells.
Researchers have identified a faulty conduit into nerve cells that causes them to fire uncontrollably, triggering the brief seizures that characterize some forms of epilepsy.
eCircadian clocks maintain the sleep-wake cycle for a 24-hour day in a variety of organisms. Two HHMI researchers and their colleagues have discovered more of the clock's molecular components.
Hughes investigators have discovered a family of packemaker ion channels that power the heart and the brain
Knockout mice point the way to a new theory of how a ubiquitous protein may promote heart disease.
HHMI researchers have discovered a genetic mutation that damages heart muscle so that it dilates to the point where the heart can no longer pump blood.
Familial hypertrophic cardiomyopathy is the most common underlying cause of sudden cardiac death in young athletes. New research suggests the disorder may be more widespread than previously thought.
Hughes investigators have discovered that a compound produced by the ocean-dwelling sponge Haliclona shuts down the ubiquitous cellular motor proteins that power cell division and a variety of other processes.
For nearly 50 years, scientists have wondered what a potassium channel looks like. Now, an HHMI research team at The Rockefeller University unveils the channel's surprising architecture.
Spontaneous neural activity in the developing brain is necessary to help organize the detailed connections that exist in the visual system.