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What is the difference between an antibody and an antigen?

What is the difference between an antibody and an antigen? - Biology Forum

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Old 09-14-2012, 03:13 AM
Pipette Filler
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Question What is the difference between an antibody and an antigen?



Hello members,

I have only idea about Antibody. An antibody is a protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses. Each antibody recognizes a specific antigen unique to its target. I want to know some more view on the relationships and difference between antibody and an antigen. Any idea on it, please share with me.

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Stephen Jones
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Old 09-14-2012, 03:39 AM
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Thumbs up Re: What is the difference between an antibody and an antigen?

Antigen

An antigen is a protein or polysaccharide the identifies a cell. An antigen that is foreign to the body triggers the body to create antibodies against it. An antigen is also present on human cells, and these antigens are referred as "self." Self antigens are ignored by the immune system. This is an important function in immunology. When this recognition fails, the immune system attacks its own antigens, which is called an autoimmune disorder.

Antibodies

Antibodies are proteins that circulate in the blood search for foreign microbes. They are created after the immune system finds foreign cells in the body. B cells produce antibodies as a part of the immune systems "memory." When the body has produced antibodies against a certain microbe, the body is able to create a stronger and quicker response to the same foreign invader. This is the process used in vaccinations for immunity.



Read more: Definitions of Antigen and Antibody | eHow.com [Only registered users see links. ]

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Old 09-18-2012, 04:08 AM
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Default Re: What is the difference between an antibody and an antigen?

Quote:
Originally Posted by Kunal Pandya View Post
Antigen

An antigen is a protein or polysaccharide the identifies a cell. An antigen that is foreign to the body triggers the body to create antibodies against it. An antigen is also present on human cells, and these antigens are referred as "self." Self antigens are ignored by the immune system. This is an important function in immunology. When this recognition fails, the immune system attacks its own antigens, which is called an autoimmune disorder.


Antibodies are proteins that circulate in the blood search for foreign microbes. They are created after the immune system finds foreign cells in the body. B cells produce antibodies as a part of the immune systems "memory." When the body has produced antibodies against a certain microbe, the body is able to create a stronger and quicker response to the same foreign invader. This is the process used in vaccinations for immunity.



Read more: Definitions of Antigen and Antibody | eHow.com Regards
Kunal Pandya's explanation is very clear and expertise.
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