Energy for virus

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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biouser123
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Energy for virus

Post by biouser123 » Fri Nov 17, 2006 3:28 am

Since a virus has no metabolic machinery to produce energy, where then does it get the energy to inject its viral DNA/RNA into a host cell???

Also, it has been shown that when different viral parts are mixed together in a suitable solution, viruses are capable of reorganizing themselves. how is this possible without energy????

Thanks! :D

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Post by victor » Sat Nov 18, 2006 3:34 am

no need any self energy if you have sets of energy machinery around you :D just insert your energy-producing program and viral assembly program (DNA/RNA) into the host's data base, then let's made some new viruses.....:lol:

Injecting viral DNA/RNA usually occurs via endositosis by matching host receptors with viral anti-receptors...when it's match, then viral DNA/RNA can be injected.
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Post by biouser123 » Sun Nov 19, 2006 8:31 pm

victor wrote:no need any self energy if you have sets of energy machinery around you :D just insert your energy-producing program and viral assembly program (DNA/RNA) into the host's data base, then let's made some new viruses.....:lol:



hmmm.. but how does the virus get the initial energy to send its DNA into the host cell.....
:?: Thanks.[/quote]

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Post by sachin » Mon Nov 20, 2006 6:03 am

See Virus as I think is an non living object,

Consider it as a capsule of any medicine; the capsule has the function that to carry inner chemicle to stomach directly. there envelope gets dissolved in acidic stomach and chemicals in are exposed. Samae way virus function. :P

Virus is of two parts 1-Envelope And 2-DNA/RNA main concerned thing is second one. First thing has function only to protect and carry DNA/RNA upto desired part of host cell. :)

Envelope is complex Molecule in Structure. Its activity is dependent of binding sites on host cell. The enegy for its activation is not stored insside but it simply the result of free radicles of its molecular structures that Radily bind to protein receptors on host cell. :) :P

Hope this will help you.

You can read this for more understanding.

http://www.brown.edu/Courses/Bio_160/Projects1999/hiv/infect.html

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Post by victor » Mon Nov 20, 2006 11:27 am

like [email protected] said....the envelope (or capsid if the envelope is not present is some families) contains viral's genetic material and it would release its contents via receptor signal which telling the host to swallow the virus via endocytosis.
But, until now I think there haven't any info about how the viral DNA/RNA can penetrate the nuclear membrane (in eukaryotes) and integrate with the host's DNA, while there're many nuclease enzymes out there in cytosol...
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Post by sachin » Mon Nov 20, 2006 2:49 pm

victor wrote:But, until now I think there haven't any info about how the viral DNA/RNA can penetrate the nuclear membrane (in eukaryotes) and integrate with the host's DNA, while there're many nuclease enzymes out there in cytosol...


Hey, Victor :D

Its not only DNA/RNA that penetrate NM. but Proteins are bound with DNA/RNA. That avoids Nuclease to act on them. 8)
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Post by biouser123 » Mon Nov 20, 2006 8:52 pm

That makes a lot more sense now... Thanks guys! :D :D :D

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Post by victor » Tue Nov 21, 2006 5:01 am

Um...yes, I've heard it also, but there're some virus families that sent their DNA/RNA without protein coated....but I forgot waht families they are....

I'll search my book again...:D
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Post by sachin » Tue Nov 21, 2006 11:01 am

victor wrote:Um...yes, I've heard it also, but there're some virus families that sent their DNA/RNA without protein coated....but I forgot waht families they are....

I'll search my book again...:D


Ya those are BacterioPhages; But still DNA is Bound with protien.
Because No protein=No Transport. So protein is required.
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