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Latest Genetics glossary Stories

2012-04-09 09:12:55

Discovery may create dialogue about DNA and RNA data bank privacy issues Researchers from Mount Sinai School of Medicine have developed a method to derive enough DNA information from non-DNA sources–such as RNA–to clearly identify individuals whose biological data are stored in massive research repositories. The approach may raise questions regarding the ability to protect individual identity when high-dimensional data are collected for research purposes. A paper introducing...

2010-08-31 13:33:04

An Iowa State University team of researchers has developed a type of hybrid proteins that can make double-strand DNA breaks at specific sites in living cells, possibly leading to better gene replacement and gene editing therapies. Bing Yang, assistant professor of genetics, development and cell biology, and his colleagues developed the hybrid protein by joining parts of two different bacterial proteins. One is called a TAL effector, which functions to find the specific site on the gene that...

2010-08-12 15:49:54

Within a dangerous stomach bacterium, Yale University researchers have discovered an ancient but functioning genetic remnant from a time before DNA existed, they report in the August 13 issue of the journal Science. To the surprise of researchers, this RNA complex seems to play a critical role in the ability of the organism to infect human cells, a job carried out almost exclusively by proteins produced from DNA's instruction manual. "What these cells are doing is using ancient RNA technology...

2009-06-10 14:25:00

Proteins responsible for this type of DNA repair may also limit the effectiveness of chemotherapy agents, which aim to injure tumor DNAA team of researchers at The Scripps Research Institute and other institutions has discovered a new way by which DNA repairs itself, a process that is critical to the protection of the genome, and integral to prevention of cancer development.Scientists who study the repair of the DNA bases, which make up the information in the human genome, had known of only...

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2009-03-10 08:53:45

More and more information is being gathered about how human genes influence medically relevant traits, such as the propensity to develop a certain disease. The ultimate goal is to predict whether or not a given trait will develop later in life from the genome sequence alone (i.e. from the sequence of the bases that make up the DNA strands that store genetic information in every cell of the body). Now, writing in the journal Current Biology, a Cell Press publication, a group of researchers...

2005-09-29 19:36:04

Since the discovery of the structure of DNA by James Watson and Francis Crick in 1953, the paradigm for DNA replication has stated that the DNA itself codes for the appropriate pairings for replication. In other words, if a guanine base is on the original strand of DNA then its partner, a cytosine base, will pair to it on the replicated strand. In a study published in this week's issue of Science, researchers from Mount Sinai School of Medicine report on the first instance in which a protein,...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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