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Infectious particle made of protein?
Prions are infectious proteins. Examples are the well known "mad cow disease" or bovine spongiform encephalopathy (BSE; affects cattle), scrapie (affects sheep), Creutzfeldt-Jacob disease, Kuru, Gerstmann-Sträussler-Scheinker syndrome, and Fatal familial insomnia. Variant Creutzfeldt-Jakob disease (vCJD) is the disease that occurs in humans when BSE proteins from cattle enter humans.
What are viruses without a nucleus called?
A prion is a small infectious particle that contains a protein. These contain no DNA or RNA. These cause Creutzfeldt-Jakob disease, Scrapie in sheep and Kuru. These are deadly and progressive nerve wasting diseases.
Are prions just viruses that lack a capsid?
A prion is a small infectious particle that contains a protein. These contain no DNA or RNA. These cause Creutzfeldt-Jakob disease, Scrapie in sheep and Kuru. These are deadly and progressive nerve wasting diseases.
What incomplete viruses have been linked to diseases like scrapie and mad cow?
Prions.
How prion discovered?
Prions were discovered in the 1980s by Stanley B. Prusiner, who received the Nobel Prize in Physiology or Medicine in 1997 for his work. He coined the term "prion" to describe the infectious agent responsible for diseases like scrapie in sheep and Creutzfeldt-Jakob disease in humans. Prions are unique in that they are made up of abnormal proteins that can induce normal proteins to misfold and aggregate, leading to neurodegenerative diseases.
What is prions?
PrionsA prion is an infectious protein that is misfolded. These proteins can aggregate in the brain and other neural tissue, forming amyloids. Diseases associated with prions include bovine spongiform encephalopathy (mad cow disease), scrapie, kuru, chronic wasting disease, and Creutzfeldt-Jakob disease. Prions are still poorly understood by researchers, and prion diseases (transmissible spongiform encephalopathies) remain untreatable.
What two incomplete viruses have been linked to certain diseases such as scrapie and mad cow?
there are none
What are the infectious proteins with no nucleic acids called?
Prions are a misfolded protein and cause diseases. It can cause several central nervous system diseases including Creutzfeldt-Jakob Disease, Fatal Familial Insomnia and Kuru in humans. Spongiform Encephalopathy in cows, mink, and cats plus Scrapie in sheep.
An infectious agent that consists only of protein is a?
An infectious agent consisting of a protein is a prion. This is a mis-folded protein. It can cause several central nervous system diseases including Creutzfeldt-Jakob Disease, Fatal Familial Insomnia and Kuru in humans. Spongiform Encephalopathy in cows, mink, and cats plus Scrapie in sheep.
What one of these is an infectious protein?
They are called Prion. This is the definition I fount at wordnetweb.princeton.edu/perl/webwn: "an infectious protein particle similar to a virus but lacking nucleic acid; thought to be the agent responsible for scrapie and other degenerative diseases of the nervous system".
What is another name for prion disease?
A prion is a misfolded protein that is considered an infectious agent because they cause properly folded proteins to convert into the misfolded, prion form. In humans, prions cause Creutzfeldt-Jakob disease. In cattle, prions cause mad-cow disease.
Is Penicillin much more effective against kuru scrapie and Creutzfeldt-Jacob disease than it is against AIDS and herpes?
Think about it: AIDS and Herpes are VIRAL infections, and we know viruses aren't alive. And therefore non-bacterial. Kuru and Creutzfeldt-Jacob diseases is transmitted via prions, by ingestion of contaminated organ tissue, typically as seen in cannibalistic cultures. Prions are no more alive than viruses. Penicillin is an anti-biotic or anti-bacterial agent. You have to ask yourself, "Are either viruses or prions bacterial in nature or form?" Your answer to that question will be the same as the answer to this homework question.
