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Alzheimer’s protein is likely held together with many weak chemical interactions

July 31, 2019 dna 0
The chemical interactions that give proteins their shape may be weaker and more numerous than previously recognized. Chemists modeled the building blocks of the protein structure that causes Alzheimer’s disease, amyloid beta sheets. Their calculations revealed that some atoms too far apart to bond were still in each other’s ‘electron neighborhoods.’
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Antibiotic-resistant genes found in London’s canals and ponds

July 31, 2019 dna 0
Central London’s freshwater sources contain high levels of antibiotic-resistant genes, with the River Thames having the highest amount, according to research by UCL. The Regent’s Canal, Regent’s Park Pond and the Serpentine all contained the genes but at lower levels than the Thames, which contained genes providing resistance for bacteria to common antibiotics such as penicillin, erythromycin and tetracycline.