What is the difference between antigen and antibody?

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paul.fr

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Offline DoctorBeaver

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What is the difference between antigen and antibody?
« Reply #1 on: 19/08/2007 11:25:38 »
As far as I know, antibodies are the body's own defence against infection and antigen's stimulate the body to produce antibodies.

I dare say Chris will show me to be totally wrong.  [:(]
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Offline iko

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What is the difference between antigen and antibody?
« Reply #2 on: 19/08/2007 16:18:23 »
Hi Paul.fr,

you may refresh your knowledge
about viral infections and go to
page 5 for a definition of Ag and Ab.
Take care

ikoD
« Last Edit: 19/08/2007 16:20:01 by iko »

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Offline chris

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What is the difference between antigen and antibody?
« Reply #3 on: 16/09/2007 22:03:58 »
Antigens are molecules that the immune system uses in responding to a target. In other words, antigens are like the molecular fingerprint of a cell, bacterium, virus or fungus. Antigens are usually proteins or pieces of protein.

Antibodies, on the other hand, are Y-shaped proteins made by B lymphocytes (plasma cells) that can recognise antigens. The tips of the Y are known as hypervariable regions which are programmed to bind antigen by shuffling genes.

Chris
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Offline DoctorBeaver

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What is the difference between antigen and antibody?
« Reply #4 on: 20/09/2007 12:31:01 »
See? I told you Chris would show me up  [:(]
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Offline iko

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What is the difference between antigen and antibody?
« Reply #5 on: 20/09/2007 12:35:36 »
Yes D.B.,

you had to click my previous link (digit: 5)
to open a splendid pdf with a proper 'box'
about antigen and Ab definition.
Plus an update on viral diseases...

ikod  [^]

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Offline DoctorBeaver

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What is the difference between antigen and antibody?
« Reply #6 on: 20/09/2007 15:09:42 »
Yes D.B.,

you had to click my previous link (digit: 5)
to open a splendid pdf with a proper 'box'
about antigen and Ab definition.
Plus an update on viral diseases...

ikod  [^]

Oops... I hadn't realised it was a link. I thought it was just a weird reply!  [:I]
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Offline iko

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What is the difference between antigen and antibody?
« Reply #7 on: 21/09/2007 09:05:39 »
I apologize for my temporary 'hidden-link' crisis.
Yes, it was a bit tricky!
Regards,

ikod