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Prions

Prions

See: prp, gerstmann straussler scheinker syndrome. Suggested as the causative agents of several infectious diseases such as scrapie (in sheep), kuru and Creutzfeld Jakob disease in man. They also cause spongiform diseases. Prions (proteinaceous infective particles) apparently contain no nucleic acid. The 27 kd protein of scrapie is related to a normal cell protein and may possibly cause its over production.


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A theoretical question - Genetic manipulation

... humans can it be altered? eg could the rabies virus be altered to cause some of the symptoms of something entirely different? b) which organisms (prions, bacteria, viruses) are most easily altered? 2. a) Concerning prions, viruses, and bacterium's effects on human anatomy; is it possible for an ...

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by Maitreya
Sat Dec 07, 2013 6:41 pm
 
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 4232

Re: Living or not? (viruses,viroids and prions).

For those who don't know, some viruses have membrane-like structures called "envelopes". http://en.wikipedia.org/wiki/Viral_envelope I don't know what distinguishes a membrane from an envelope.

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by wildfunguy
Thu Oct 17, 2013 10:57 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 9878

Re:

... to actually sustain translation independently. do ribosomal proteins define life???? if so, then viruses with protein coat would become living and prions too.And all other protein particles too would be living isn't it??? Life can grow, respond to the environment, reproduce, and metabolize. Viruses ...

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by wildfunguy
Tue Oct 01, 2013 2:04 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 9878

Living or not? (viruses,viroids and prions).

... is why does it need ribosomal proteins??? do ribosomal proteins define life???? if so, then viruses with protein coat would become living and prions too.And all other protein particles too would be living isn't it???

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by Sumanth001
Mon Sep 30, 2013 12:54 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 9878

Re: Living or not? (viruses,viroids and prions).

Are viruses more related to eachother or to their hosts? Can they evolve?

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by wildfunguy
Sun Sep 29, 2013 1:09 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 9878
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