Tag: "coli" at biology news
E. coli bacteria make Alzheimers-linked fibers
... that certain strains of the bacterium Escherichia coli
(E. coli) produce amyloid fibers similar to those ...rowth of the snowflake. Curli production in E. coli
involves two main proteins, CsgA and CsgB. The A protein is released by the bacteria dissolved in th...
Discovery of bacterial 'touch sensor' could lead to biofilm treatments
...the process for building a film. Their study of E. coli
identified a protein on the surface of the bacteri...hin the cell. "In a sense, you can say that for E. coli
this is a touch sensor," said Silhavy, a professor in the Department of Molecular Biology. "If we mu...
Common microbes survive pressures equal to those found at 50 kilometers inside the Earths crust
...ond anvil cells to subject two bacteria species-E. coli
commonly found in the human gut, and the metal red...lly considered inhospitable, says Sharma. Both E. coli
and Shewanella use formate in their metabolic processes in the absence of oxygen. With molecular spe...
Scientists reveal fine detail of cell's energy machinery
...seases," he said. Their work with the bacteria E. coli
provides the first real evidence for the 'chemiosmotic' theory proposed by Dr Peter Mitchell in 1961. Initially dismissed by mainstream science, Mitchell's theory on energy conversion is now accepted as a fundamental principle in the field of 'bioene...
UB dental researchers find novel peptide in saliva that kills broad range of fungi and bacteria
...losis -- as well as several bacteria, including E. coli
and P. gingivalis, which cause serious intestinal and oral infections, respectively, and S. mutans, which causes dental caries. Moreover, the peptide is active (in vitro) at very low concentrations -- 10 micrograms per milliliter -- shows little or n...
Darwin's Time Machine: Scientists begin predicting evolution's next step
...assic example is to remove the gene that allows E. coli
bacteria to digest lactose, but then give the col...and survive. Thirty years ago, Hall was growing E. coli
in his lab, trying to pick out those bacteria that had a mutation significant enough to help them ou...
Anti-inflammatory drug fails to prevent a hereditary colon cancer
...e caused by mutations of the adenomatous polyposis coli
(APC) gene. Hopkins researchers developed a genetic test for the APC gene mutation several years ago, allowing those with a family history of the disease to learn if they have inherited a genetic predisposition for FAP. Currently, regular screening...
Scientists document water molecule movement across cell walls
...ed the geometry of the protein in the bacterium E. coli
(GlpF). However, Shulten said, that work still could not resolve exactly how water is conducted in the channel, and how it prevents the conduction of ions. Crystallographic methods available today cannot capture such minute detail, he said. Schulten...
Protecting drinking water from disease transmission by means of zeolite filters
...man infections, including hepatitis viruses and E. coli
bacteria. The development of an inexpensive means for blocking the transmission of bacteria and viruses to humans could significantly reduce disease outbreaks associated with groundwater and could also alleviate concerns regarding bioterrorist threat...
Sea Grant News: Caulerpa, DNA water quality detectives, Kayaking in Maine
...aw of Aquarium Plant DNA Technology Identifying E. coli
Sources; Notes Separate Human and Animal Sources ...tal problem that is indicated by high levels of E. coli
counts. In a recent study, Illinois-Indiana Sea Grant researchers Charles Tseng and W.T. Evert Ting...
Food & Agriculture Biosecurity Initiative announced by incoming executive dean at Rutgers
...apples, contaminated strawberries from Chile and e coli
in hamburger meat pinpointed our vulnerability. We are little more prepared today for accidental introduction of foodborne pathogens or chemicals. Faced with intentional tampering, our system would fail. Adelaja today announced an effort to shore up...
Recombinant Protein Expression Lab established at CU
...lear magnetic resonance (NMR), using bacterial (E. coli
) and insect cell systems. Subsequently, as rational design identifies molecular targets to treat disease, the facility can scale up to produce larger quantities of proteins for clinical trials in the Comparative Cancer Program of the College of Vet...
Cranberry may offer protection against antibiotic-resistant bacteria that cause UTIs
...uice cocktail in disabling a number of Escherichia coli
(E. coli) bacteria, some of which are resistant to...cine, suggests that an increasing number of new E. coli
strains are resistant to the most common antibiotics used to treat UTIs, prompting physicians and re...
Fluid forces within the body help invasive bacteria
...ibed in the June 28 issue of the journal Cell. "E. coli
has developed the ability to hold on tight only wh... that can block the adhesion." In other words, E. coli
appears designed to colonize parts of the body that are exposed to a lot of shear force. It has ha...
See Spot work
Although the E. coli
galactose operon is a staple of most biology textb...te gene expression in the galactose operon. The E. coli
galactose operon is a cluster of four contiguous genes that are expressed as a group and encode enz...
'Rock-paper-scissors' preserves biodiversity in bacterial neighborhoods
...o interact more thoroughly. Instead of gangs of E. coli
fighting for local turf on a petri dish, mixing populations on the petri dish or in a flask produced the bacterial equivalent of world war. Greater dispersal and interaction of populations turned competition for an ecological niche into a winner-take...
Tips from the Journals of the American Society for Microbiology
... the researchers tested the ability of Escherichia coli
to repair DNA damage caused by varying levels of U.... Slawson. 2002. Potential repair of Escherichia coli
DNA following exposure to UV radiation from both medium- and low-pressure UV sources used in drinkin...
University of Georgia researchers link increased risk of illness to sewage sludge used as fertilizer
...pathogens in sludge, including bacteria such as E. coli
and salmonella; viruses, including hepatitis A; intestinal worms; harmful protozoa; and fungus. Sludge also includes traces of household chemicals poured down drains, detergents from washing machines, heavy metals from industry, synthetic hormones fr...
World's largest scientific society to honor DuPont scientists for 2 breakthrough discoveries
...o reduces the occurrence of false positives for E. coli
O157:H7. The BAX system has brought PCR into routine use in the food industry, setting a new standard for food testing. The USDA's Food Safety and Inspection Service -- which tests and regulates meat production for the United States and is considere...
New insights into insect antimicrobials point the way to novel antibiotics
...ing surface for the antimicrobial peptide on an E. coli
DnaK fragment. Knowledge of this binding site could lead to the development of new drugs tailored to combat E. coli. It may also be possible to develop drugs that would kill bacteria that are unresponsive to native pyrrhocoricin, but for which the Dn...
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