(Phys.org) —Viruses are biological pirates, invading cells and hijacking their machinery to reproduce and infect again. Research at Harvard Medical School is shedding new light on the battle line where viral and cell membranes ...
Cell & Microbiology
Mar 21, 2013
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(Phys.org)—In a soundproofed, vibration-stabilized, temperature-controlled room, Stanford biophysicist Steven Block was watching a very small origami project.
Biochemistry
Oct 22, 2012
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(Phys.org)—When a cell divides, it passes on genetic information by producing copies of its DNA. Chemists have also learned to copy DNA. In the journal Angewandte Chemie, a German team has now introduced a new copying technique ...
Biochemistry
Aug 31, 2012
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Two opposing teams battle it out to regulate gene expression on the DNA playing field. One, the activators, keeps DNA open to enzymes that transcribe DNA into RNA. Their repressor opponents antagonize that effort by twisting ...
Cell & Microbiology
Aug 26, 2012
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(Phys.org) -- Scientists have cracked a molecular code that may open the way to destroying or correcting defective gene products, such as those that cause genetic disorders in humans.
Cell & Microbiology
Aug 17, 2012
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(Phys.org) -- Genetic engineers and genomics researchers should welcome the news from the Lawrence Berkeley National Laboratory (Berkeley Lab) where an international team of scientists has discovered a new and possibly more ...
Cell & Microbiology
Jun 28, 2012
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In April 2009, the world took notice as reports surfaced of a virus in Mexico that had mutated from pigs and was being passed from human to human. The H1N1 "swine flu," as the virus was named, circulated worldwide, killing ...
Analytical Chemistry
Jun 11, 2012
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(PhysOrg.com) -- The human genome contains some 3 billion base pairs that are tightly compacted into the nucleus of each cell. If a DNA strand were the thickness of a human hair, the entire human genome would be crammed into ...
Cell & Microbiology
Jan 17, 2012
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(PhysOrg.com) -- Viruses have led scientists at Washington University School of Medicine in St. Louis to the discovery of a security system in host cells.
Biochemistry
Nov 17, 2010
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(PhysOrg.com) -- Finding and treating a tumor without disturbing normal tissue presents challenges - sometimes the most effective therapies can be invasive and harsh.
Biochemistry
Nov 30, 2009
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