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What systems do prions affect?
Prions affect the nervous system (the brain and other neural tissue).
How could prions multiply without nucleic acids?
Prions multiply by a process which is, at present, not fully understood. The protein PrPr is present in healthy cells of all mammals, in the brain and central nervous system. It is only when the gene that creates PrPr undergoes mutation that it begins to produce a harmful strain of PrPr, the prion. Prions replicate by causing the surrounding healthy proteins to fold abronmally, turning them into prions. These newly-formed prions in turn cause other proteins to fold abnormally. This process creates vacuoles in the cells of the brain, resulting in diseases such as Creutzfeld-Jakob disease in humans, and Bovine Spongiform Enphysema in cows. Prions multiply by a process which is, at present, not fully understood. The protein PrPr is present in healthy cells of all mammals, in the brain and central nervous system. It is only when the gene that creates PrPr undergoes mutation that it begins to produce a harmful strain of PrPr, the prion. Prions replicate by causing the surrounding healthy proteins to fold abronmally, turning them into prions. These newly-formed prions in turn cause other proteins to fold abnormally. This process creates vacuoles in the cells of the brain, resulting in diseases such as Creutzfeld-Jakob disease in humans, and Bovine spongiform encephalopathy (mad cow disease)
How do cows get mad cow disease?
Mad cow disease happens when the proteins in the brain of cow become misfolded. This is called prion. In simple words all proteins have to be folded before they can function and when some proteins in the brain become misfolded, such a state is called prions (misfolding of proteins) and it results in mad cow disease.
What are importance of 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 pathogen is a packet of proteins with no RNA or DNA?
Prions
What systems do prions affect?
Prions affect the nervous system (the brain and other neural tissue).
How could prions multiply without nucleic acids?
Prions multiply by a process which is, at present, not fully understood. The protein PrPr is present in healthy cells of all mammals, in the brain and central nervous system. It is only when the gene that creates PrPr undergoes mutation that it begins to produce a harmful strain of PrPr, the prion. Prions replicate by causing the surrounding healthy proteins to fold abronmally, turning them into prions. These newly-formed prions in turn cause other proteins to fold abnormally. This process creates vacuoles in the cells of the brain, resulting in diseases such as Creutzfeld-Jakob disease in humans, and Bovine Spongiform Enphysema in cows. Prions multiply by a process which is, at present, not fully understood. The protein PrPr is present in healthy cells of all mammals, in the brain and central nervous system. It is only when the gene that creates PrPr undergoes mutation that it begins to produce a harmful strain of PrPr, the prion. Prions replicate by causing the surrounding healthy proteins to fold abronmally, turning them into prions. These newly-formed prions in turn cause other proteins to fold abnormally. This process creates vacuoles in the cells of the brain, resulting in diseases such as Creutzfeld-Jakob disease in humans, and Bovine spongiform encephalopathy (mad cow disease)
What caused mad cows disease?
BSE is an interesting disease from a medical standpoint because of the causative agent, prions (pronounced pree-ons). A prion is an infectious protein that is similar to a virus, but not a typical virus. Unlike viruses, prions aren't alive, so they can't be killed with the usual disinfectants. The body does not mount a typical viral immune attack against prions, either. Prion proteins can be denatured, but only at extremely high temperatures or with very strong chemicals, either way, not consistent with animal life so these are not treatment options. Diseases caused by prions are referred to as TSEs -- Transmissible Spongiform Encephalopathies.
Is a cows brain bigger than a monkeys brain?
yes
How do cows get mad cow disease?
Mad cow disease happens when the proteins in the brain of cow become misfolded. This is called prion. In simple words all proteins have to be folded before they can function and when some proteins in the brain become misfolded, such a state is called prions (misfolding of proteins) and it results in mad cow disease.
What are importance of 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 pathogen is a packet of proteins with no RNA or DNA?
Prions
Is DNA found in all prions?
No, DNA is not found in any prions. Prions are just protein - they don't contain a nucleic acid.
Do prions contain DNA or RNA?
Prions are an infectious particle made of protein. They do not contain DNA or RNA.
Can you kill prions by sterilization?
No, cooking does not destroy or disable prions. If you were able to cook a meat that contains prions to the point where the prions were disabled, the meat would be rendered inedible.You can use chemicals mixed with heat to destroy prions, but that's not a process you would want to subject your food to.
Do prions have RNA?
No, prions aren't organisms or even organism imitators like viruses. Prions are misfolded proteins that can aggregate and cause serious neurological problems. See link below for more info about prions from Answers.com.
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.
