coli in Biological News

Mystery E. coli genes essential for survival of many species

... Scientists have shown that E. coli one of the best known and extensively studied ... turns out, are essential for the survival of E. coli and one out of the three could also be ... genes identified through sequencing of the E. coli genome and studied them to discover their ...

Plant Min protein sits tight and rescues E. coli

... thaliana Min protein (AtMinD) localizes in E. coli cells' polar regions keeping cell division at its correct central location, yet unlike its E. coli homologue, AtMinD does not oscillate. Making certain that E. coli cells divide in the centre is down to Min ...

Tips from the American Journal of Pathology

... cause disease. Some bacteria, such as Escheria coli ( E. coli ) or Citrobacter rodentium ( C. rodentium ), ... produced by gram negative bacteria including E. coli and C. rodentium , has been associated with ...

K-State researchers help Epitopix license the United States' first E. coli O157 vaccine for cattle

... in the United States' first vaccine against E. coli O157 in beef cattle. "Researchers have done ... post-harvest food safety aspect, whether it's E. coli or salmonella," said Dan Thomson of K-State's ... pathogen outbreaks, and specifically E. coli O157, has been a major research initiative of ...

Transport behavior of E. coli varies depending on manure source

... MADISON, WI, MARCH 9, 2009 Escherichia coli is a commonly used indicator organism for ... in drinking water supplies. The importance of E. coli as an indicator organism has led to several ... Commonly only a single strain of E. coli is used in these studies, yet research has shown ...

Protein structure determined in living cells

... of a protein within the bacterium Escherichia coli . "We have reached an important goal of molecular ... protein into the model system Escherichia coli , where the protein was in high concentration. ... structure of the protein within E. coli cells using software that was developed in their ...

Milestone achieved toward production of malaria treatment using synthetic biology and fermentation

... antimalarial agent artemisinin, in Escherichia coli " appears in PLoS ONE , an open-access journal ... production of 25 g/L of amorphadiene through E. coli fermentations. The production of amorphadiene in E. coli was first described in 2003 but the amount ...

Dog owners more likely to share germs with pets by not washing hands than by sleeping with dog

... no more likely to share the same strains of E. coli bacteria with their pets than are other dog ... activities." Stenske's study centered on E. coli bacteria, which is common in the ... 10 percent of dog-human pairs shared the same E. coli strains. She also found that the ....

New insights into a leading poultry disease and its risks to human health

... poultry disease called avian pathogenic E. coli (APEC). APEC is part of a large, diverse ... microbes called extra-intestinal pathogenic E. coli (ExPEC). They cause a number of complex brain, ... an annual value of more than $50 billion, and E. coli infections are a big threat, causing millions in ...

Researchers push nature beyond its limits to create higher-density biofuels

... its limits by genetically modifying Escherichia coli , a bacterium often associated with food ... engineer proteins for a whole new pathway in E. coli to produce longer-chain alcohols with up to ... examined the metabolism of amino acids in E. coli and changed the metabolic pathway of the ...

Sulfurous ping-pong in the urinary tract

... gene combination present in strains of E. coli which cause urinary tract infections: two genes ... Point of vantage against the bad" E. coli strains A new structure, a new mechanism ... since ASST is present exclusively in E. coli strains causing urinary tract infections, a ...

Properties of unusual virus revealed in research

... -- an RNA polymerase protein -- into an E. coli bacterial cell. The results, which are ... to come up with new ideas about ways to kill E. coli bacteria, which can be dangerous to humans. ... DNA is shaped like a hairpin, whereas the E. coli bacterium's DNA is not shaped like a hairpin. ...

Researchers study virus with unusual properties

... -- an RNA polymerase protein -- into an E. coli bacterial cell. The results, which are ... to come up with new ideas about ways to kill E. coli bacteria, which can be dangerous to humans. ... DNA is shaped like a hairpin, whereas the E. coli bacterium's DNA is not shaped like a hairpin. ...

GIANT-Coli: A novel method to quicken discovery of gene function

... coli, commonly known as E. coli? Think again. "E. coli has more than four thousand genes, and the ... out research using the bacterium. Harmless E. coli strains are normally found in the intestines of ... allows rapid and large-scale studies of the E. coli genes. The researchers believe their new method, ...

Sesame seed extract and konjac gum may help ward off Salmonella and E. coli

... offer protection against different strains of E. coli and Salmonella bacteria. The study by Dr Petra ... shows that these foodstuffs act as binders for E. coli and Salmonella bacteria. The bacteria attach ... or reduce the severity of symptoms caused by E. coli or Salmonella. Other foods that were shown to ...

Syracuse University scientists discover how some bacteria may steal iron from their human hosts

... researchers isolated the gene and added it to E. coli bacteria (which is not an Actinomycete bacteria). They found that the mutant E. coli bacteria could also ingest iron-citrate. Without the gene, E. coli could not gain access to the iron. "It's ...

Texas A&M researchers develop tool to study complex clusters of genes

... the model organism is E. coli. Because E. coli is a model organism, scientists have studied it ... with a known and experimentally validated E. coli operon and then searches each of hundreds of ... for genes that are related to those in the E. coli operon. Once the tool has located related genes ...

Research yields pricey chemicals from biodiesel waste

... a new fermentation process that allows E. coli and other enteric bacteria to convert glycerin ... new method of glycerol fermentation that used E. coli to produce ethanol, another biofuel. Even though ... that mediate glycerol fermentation in E. coli ," Gonzalez said. "This knowledge base is ...

American Chemical Society's Weekly PressPac -- April 30, 2008

... developed a way to use genetically engineered E. coli bacteria to produce mussel adhesive proteins. Now ... Adding the VHb gene to the engineered E. coli doubled the amount of mussel proteins produced, ... Mussel Adhesive Protein Production in Escherichia coli by Co-expression of Bacterial Hemoglobin ...

Tips from the Journals of the American Society for Microbiology

... of food-borne illnesses attributed to Escherichia coli O157:H7 and Salmonella enterica have received ... protein-labeled enteric pathogens including E. coli O157:H7, S. enterica, and Listeria monocytogenes. ... also displayed vesicle production, but only of E. coli O157:H7 and S. enterica, not L. monocytogenes. ...

Ant guts could pave the way for better drugs

... against gram-negative bacteria, like E. coli and salmonella, that would destroy these bacteria ... sequenced the genome of the model bacterium E. coli 11 years ago, yet they still do not understand ... Members of Silhavy's laboratory use E. coli as a model system to better understand the ...

NIH awards $6.5 million grant to UT Southwestern to develop new antibiotic

... bacterial species including Salmonella, E. coli and Francisella tularensis, which causes ... has focused on understanding a strain of E. coli known as enterohemorrhagic E. coli 0157:H7, or EHEC. Her research focuses on how ...

Solving an avian scourge could also provide benefits to human health

... poultry disease, called avian pathogenic E. coli (APEC). Mellata is an expert on understanding the genetic signposts of how certain kinds of E. coli turn deadly. We have to understand how bacteria ... of poultry infections are from the bacteria E. coli and Salmonella. Unlike in people, Salmonella is ...

E.coli a future source of energy?

... Jan. 29, 2008 For most people, the name E. coli is synonymous with food poisoning and product ... Chemical Engineering, has tweaked a strain of E. coli so that it produces substantial amounts of ... has yet to catch on. Woods work with E. coli could change that. While the public may be ...

Dissecting the genetic components of adaptation of E. coli to the mouse gut

... of a model bacterial strain, Escherichia coli MG1655. E. coli is naturally resident within the adult mammalian ... Intestinal colonization of germ-free mice by E. coli was followed by the very rapid selection of ...

Bacteria that cause urinary tract infections invade bladder cells

... for UTIs, Hultgren says. The bacterium Escherchia coli is thought to be responsible for 80 percent to 90 ... believed for a variety of reasons that E. coli wasn't getting into bladder cells. "For ... of symptomatic infection, intracellular E. coli may be in dormant phases where there would be ...

Poultry workers at increased risk of carrying antibiotic-resistant E. coli

... States are 32 times more likely to carry E. coli bacteria resistant to the commonly used ... are at risk of exposure to drug resistant E. coli bacteria. The Maryland and Virginia regions on ... of being colonized with gentamicin-resistant E. coli than other members of the community. One of ...

American Chemical Society's Weekly PressPac -- Nov. 14, 2007

... the nanoparticles helped detect a strain of E. coli within five minutes and removed 88 percent of the ... infection. The scientists exposed a group of E. coli bacteria to the sugar-coated nano-magnets to mark ... to distinguish between three different E. coli strains. The study represents the first time ...

Together we stand: bacteria organize to survive hostile zones

... reported on the observation of the bacteria E. coli growing in the cramped conditions of a new ... range, allowing visualization of single E. coli cells. Ann Stevens laboratory at Virginia Tech ... adds. Levchenko also noted that rod-shaped E. coli that were too short or too long typically either ...

Cranberry sauce: good for what ails you

... compounds in cranberries are able to alter E. coli bacteria, which are responsible for a host of ... They have found that the compounds prevent E. coli from adhering to cells in the body (a necessary ... show that the adhesive forces between E. coli and cells of the urinary tract are greatly ...

Understanding, combating foodborne pathogens E. coli 0157 and salmonella

... researchers and six collaborators taking on E. coli 0157 and salmonella. "It's becoming more and ... Nagaraja has been leading the team on an E. coli 0157 research project that goes back more than a decade at K-State. E. coli 0157 doesn't cause problems for livestock, but ...

American Chemical Society's Weekly PressPac -- Sept. 26, 2007

... diarrhea caused by enterotoxigenic Escherichia coli (E. coli), which accounts for 210 million cases ... clinical treatment of enterotoxigenic Escherichia coli diarrhea, the researchers state. Additional ... Component Inhibit Enterotoxigenic Escherichia coli Heat-Labile Enterotoxin-Induced Diarrhea in Mice ...

Spontaneous assembly

... Public Library of Science entitled: "Self-Organization of the Escherichia coli Chemotaxis Network Imaged with Super-Resolution Light Microscopy." ... to be found within prokaryotic cells, such as rod-shaped bacteria like E. coli . "It has remained somewhat mysterious how bacteria are able to ...

Researchers engineer metabolic pathway in mice to prevent diet-induced obesity

... metabolism in mammals, Liao's team cloned bacteria genes from Escherichia coli that would enable the shunt, then introduced the cloned E. coli genes into the mitochondria of liver cells in mice; mitochondria are ...

Genetic switch potential key to new class of antibiotics

... author. "Among the bacteria now known to contain riboswitches are E. coli and streptococcus, as well as the bacteria behind forms of anthrax, ... ability. Previous experiments showed that bacteria like Escherichia coli (a main cause of food poisoning) and Shigella flexneri (a main cause of ...

When intestinal bacteria go surfing

... The bacterium Escherichia coli is part of the healthy human intestinal flora. However, E. coli also has pathogenic relatives that trigger diarrhea illnesses: ...

Synthetic biology can help extend anti-malaria drug effectiveness

... By transplanting genes from yeast and from the sweet wormwood tree into E. coli bacteria and then bypassing the E. coli's metabolic pathway and ... and other techniques to improve the yield of amorphadiene in E. coli by a million fold from where started," Keasling said. In 2004, Keasling ...

Tailor-made recombinant proteins in mammals

... insulin for diabetes, can be made in bacterial systems like Escherichia coli , but most protein pharmaceuticals must be expressed in cultured mammalian ... pinpointing chemical reactions to sites on recombinant proteins from E. coli , Bertozzi and her colleagues showed that it works equally well in the ...

Long-sought protein structure may help reveal how 'gene switch' works

... X-ray diffraction. However, the structure of the inactive ("off") E. coli CRP eluded them as attempts to crystallize it repeatedly failed. With only ... tuberculosis [the pathogen that causes tuberculosis] for the E. coli protein. The team's initial successobtaining crystals of CRP in the ...

Bacteria are models of efficiency

... and Tadmor found that their model was able to accurately predict how an E. coli would change its production strategy to maximize efficiency following ... production. It turns out that that's exactly the number an average E. coli cell has. Bacteria having five or nine get a much lower efficiency ....