A new method for rapidly identifying genes that are crucial for survival of bacteria cuts the time it takes to pinpoint promising new drug targets from years to weeks.
En el mundo de aminoácidos que en su mayoría es “izquierdo”, las versiones “derechas” de algunas de estas moléculas actúan como señales que pueden estimular la adaptación de las bacterias a cambios en las condiciones ambientales.
In the overwhelmingly left-handed world of amino acids, the right-handed versions of a few such molecules act as signals that spur bacteria to adapt to changing conditions.
HHMI investigators Brian Druker and Charles Sawyers will join Nicholas Lydon, formerly of Novartis, in receiving the 2009 Lasker~Debakey Clinical Medical Research Award.
A new genetically encoded switch lets researchers use light to control a cell’s shape and movement.
The sentinels of the immune system possess a hidden strength that may be used to improve vaccine design for tough-to-beat bugs.
The method Google uses to rank the importance of web pages can help identify the species whose extinction would most likely trigger an ecosystem’s collapse.
A new imaging technique will allow scientists to focus on the tiny structures that mediate communication between neurons within relatively intact samples of brain tissue.
Variations in the ways abnormal proteins fit together to form the long amyloid fibrils associated with many diseases may represent a protein-based system of inheritance that parallels the genetic code.
Researchers have identified two molecular keys that help release salts from cells, keeping them alive in the ever-changing salinity of their environment.
Researchers have learned how a molecular switch helps the immune system to keep cancer in check by promoting the destruction of abnormal blood cells.
Interfering with communication among bacteria can prevent them from mounting a unified assault on their host.
A new study shows that most early ovarian tumors exist for years at a size that is a thousand times smaller than existing tests can detect reliably.
Un nuevo estudio muestra que la mayoría de los tumores ováricos en estadios tempranos tienen, durante años, un tamaño que es mil veces más pequeño del que los análisis existentes pueden detectar con confiabilidad.
Tiny, hair-like projections called cilia sense bitter material in the airways and help expel it.
An HHMI-funded graduate student and her colleagues have found that some chimps infected with the primate form of HIV develop AIDS-like symptoms and die early.
New clues narrow the search for the underlying cause of a serious congenital heart defect.
Lung cancer cells hijack a master cellular signal and use it to seed deadly new tumors in the brain, bone marrow, and other organs.
New evidence suggests that damage to nerve cells in people with MS accumulates because the body's mechanism for repairing the nerve coating called myelin stalls out.
Researchers have identified two proteins that begin to explain how radically slashing calories leads to a longer life.
Joan Massagué honored for elucidating one of the fundamental processes that control cell division.
A new method will speed the identification of the targets of microRNAs—the tiny but powerful bits of nucleic acid that tweak gene expression to influence many aspects of health and human disease.
HHMI is expanding collaborations with the Jane Coffin Childs Memorial Fund, the Helen Hay Whitney Foundation, the Damon Runyon Cancer Research Foundation, and the Life Sciences Research Foundation to increase support for outstanding postdoctoral researchers.
New research shows that a father’s sperm passes along a previously unrecognized set of instructions that helps guide the early development of his children.
A new molecular portrait of rotavirus may help researchers design more effective vaccines against the lethal gastrointestinal infection that kills 500,000 children annually.