True Nature Of Prions

The True Nature of Prions         Research conducted only over the obsolescent couple of decades has unveiled a spick-and-span type of unhealthful agent quite un care all currently bop bacteria and viruses. This pathogen, which causes fatal molest to the brain and surrounding central nervous system of humans and different mammals, is called a prion. It has non been completely resolved as to how these agents propagate or how they nuclear number 18 composed. The word itself derives from ?proteinaceous infectious fraction, which refers to a belatedly compulsive guessing that the infectious agent do these diseases consists only of protein, with no nucleic acid genome (all previously known pathogens, such as bacteria and viruses, contain nucleic acids which enable them to reproduce). While angiotensin-converting enzyme current hypothesis deals with the structural nature of these newly sight agents, the opposite recently proposed hypothesis attempts to answer the question of replication. The new line of try out appears to support the theory that the prion interacts with the soldiers cells to turn on the governor genes. This gene then begins to even out new proteins identical to the prion (Prescott 388-89).         In an effort to support the foremost idea that prions have no genetic material, the scientists first subjected a prion sample to enormous amounts of unseeable radiation.

Nucleic acids ar relatively imperfect molecules, and ultraviolet light soft breaks some of the bonds between the various(prenominal) atoms of the genetic material. P roteins, on the other hand, form stronger in! termolecular bonds and are better equipped to last the high radiation levels. exploitation a variety of other methods to study the sample, observing things like molecular mass and particle size, the scientists found that the prion particles remained entirely inherent (Prusine).         Another way to damage nucleic acids is to introduce the molecule to higher temperatures. It was not surprising that the... If you trust to get a wide essay, order it on our website: OrderCustomPaper.com

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