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Variable antigen

variable antigen

(Science: immunology) term usually applied to the surface antigens of those parasitic or pathogenic organisms that can alter their antigenic character to evade host immune responses. (See antigenic variation).


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Existing antibodies that will counter antigens yet to contac

... produce antibodies have a vast diversity of genes that encode for the variable part of the antibody molecule. Thus they are able to produce thousands ... basically always few B cells that produce a matching antibody for any antigen out there, some of which have a very high affinity, some a bit ...

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by biohazard
Fri Dec 11, 2009 6:58 am
 
Forum: Genetics
Topic: Existing antibodies that will counter antigens yet to contac
Replies: 4
Views: 2237

Idiotype of antibodies ?

... I can remember, I hope it helps. Hmm you know that antibody bind to antigens right. But did you know you can make antibodies attack antibodies ... which are being attacked by other antibodies. So basically antibodies' variable region are themselves being used as antigen sites. Maybe I can rephrase ...

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by david23
Mon May 07, 2007 10:07 am
 
Forum: Microbiology
Topic: Idiotype of antibodies ?
Replies: 6
Views: 3396

The Fiber Disease

... to treat such infections. Photorhabdus is an aerobic organism showing a variable activity to drug. Ideally, susceptibility tests would normally be ... a dart into you.. the dart may or may not be some kind of bacterial antigen it uses to try to paralyze you.. but you are not an insect, and the ...

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by Neva Borden
Sun Dec 03, 2006 1:13 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5014089

The Fiber Disease

... protein A [81] or endotoxin (lipopolysaccharide or LPS), a variable-size carbohydrate chain that is the major antigen of the outer membrane of gram-negative bacteria. Mycobacteria contain mycolic acid ...

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by Nadas Moksha
Mon Sep 11, 2006 2:05 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5014089

interferon

... pics will tell you and give you more :D When I saw the picture, superantigens are bind to the variable regio of the T-cell. Oh yes, can you help me to define these words?? Regio Fab Regio ...

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by Dr.Stein
Tue Jul 26, 2005 10:01 am
 
Forum: General Discussion
Topic: interferon
Replies: 44
Views: 16822
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