One of the basic requirements of evolution is variation in a population upon which selection can act. One of the sources of variation is mutation in DNA. These changes may or may not be reflected in the ensuing amino acid sequence of a protein. This exercise explores the additive effects of m... Read More
Online registration for the 3rd ASM Conference on Enterococci, July 30 - August 2, 2010, in Portland, Oregon, is now open.
Session topics include:
*Genomics and Molecular Biology
*Antibiotic Therapy and Resistance
*Plasmids and Horizontal Transfer
*Epidem... Read More
A detailed animation from VIB, Flanders Institute for Biotechnology, a nonprofit research institute conducting pioneering research in the life sciences. More than 1000 scientists explore the molecular mechanisms responsible for the functioning of the human body, plants and microorganisms. Read More
Thirty years ago this month I arrived in the Department of Microbiology at Columbia University’s College of Physicians and Surgeons (P&S) to start my own laboratory. Thirty is not only a multiple of ten (which we tend to celebrate), but also a long time to be at one place. It’s clearly time to r... Read More
Chimpanzees from African sanctuaries carry drug-resistant, human-associated strains of the bacteria Staphlyococcus aureus, a pathogen that the infected chimpanzees could spread to endangered wild ape populations if they were reintroduced to their natural habitat, a new study shows.
The study ... Read More
This episode: Artificial proteins actually function in bacteria!
Merry Youle of Small Things Considered has a new post about the history of American chestnut blight and the scientific efforts to restock North America with these stately giants through the introduction of biological control agents or with more traditional plant breeding techniques.
Click so... Read More
This episode: Using bacteria to recover precious metals like palladium!
St. Petersburg, Fla. – (Sept. 22, 2010) – Scientists and researchers seeking additional funding sources for projects that will enhance their research goals now have an alternative resource for the money they need to propel their projects forward: the general public. SciFlies.org, a new non-prof... Read More
I recently have come across a blog written by a biological anthropologist who is currently a stay at home mother to her little girl. A favorite hobby of hers is baking and her blog chronicles her culinary adventures, which much to my delight includes science themed baked goods like cookies and ... Read More
BioCyc: Microbial Genomes and Cellular Networks
by Peter D. Karp, Ingrid M. Keseler, Tomer Altman, Ron Caspi, Carol A. Fulcher, Pallavi Subhraveti, Anamika Kothari, Markus
Krummenacker, Mario Latendresse, Tom Lee, Suzanne M. Paley, Alexander G. Shearer, and Miles Trupp
The BioCyc system h... Read More
How do one-celled parasites move from the salivary gland of a mosquito through a person's skin into red blood cells? What molecular mechanisms form the basis for this very important movement of the protozoa? A team of researchers headed by Dr. Friedrich Frischknecht, head of a research group at ... Read More
Dear Vincent and Dickson,
I just heard your most recent TWIP. Please keep these podcasts going! I love listening to your podcasts and hearing your enthusiasm for my favorite biological topic, parasites. Remember that for every fan... Read More
This lecture covers the biochemical basis of actin-based motility (focusing on the pathogen Listeria as a model system for this process), the biophysical mechanism of polymerization-based force generation, and an evolutionary perspective of cell shape in prokaryotes and eukaryotes. The first par... Read More
Last year a mutation in the HA gene of the 2009 H1N1 influenza virus was identified in isolates from patients with severe disease. At the time I concluded that the emergence of this change was not a concern. Recently the Norwegian Institute of Public Health reported that the mutation, which caus... Read More
This episode: Modern hunter-gatherers have very different gut microbes from people from agricultural societies!
(12.9 MB, 14.1 minutes)
The virus that is causing alarm among global public health authorities after it killed a man in Jeddah, Saudi Arabia earlier this year and is now linked to two other cases of disease is a novel type of coronavirus most closely related to viruses found in bats, according to a genetic analysis to ... Read More