0
Antibodies (Abs), T cell receptors (TCRs) and MHC molecules are all involved in the adaptive immune response. All 3 of these (Abs, TCRs and MHCs) have a range of diversity of structure and are composed of different chains.
In most animals (including humans) antibodies are composed of 2 heavy chains and 2 light chains, each of which has constant and variable regions. This is very similar to a T cell receptor, which is composed of an α (alpha) and β (beta) chain - which have a contant and variable region.
In both cases, it is the variable region(s) which determines what the antibody or the T cell receptor can bind to. This is very important for their function.
T cell receptors (TCRs) and antibodies (Abs) are also similar in that their genes are combined and spliced in different ways to create diversity. It is important that both TCRs and Abs be able to recognise may different things.
MHC molecules are responsible for presenting antigens to T cell receptors. Once again, they are composed of an α (alpha) and β (beta) chain, which are different depending on whether they are MHC I or MHC II.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Is the body's immune response to allergens which are antigens that produce a hypersensitivity reaction including immediate inflammation?
Allergy
Whats the purpose of snot?
Mucus (aka snot) helps to keep mucus membranes lubricated/hydrated and helps clear antigens (virus, bacteria, allergens, etc) from the body.
What is a description of the mechanism that causes allergies?
Allergies result when antigens from allergens bind to mast cells, which release histamines, which in turn cause increased blood flow, sneezing, runny nose, and watery eyes.
Does Type B blood have A antigens?
No, type B blood does not have A antigens. Type B blood has B antigens.
When was Tissue Antigens created?
Tissue Antigens was created in 1971.
What are antigens determining blood type carried on?
Antigens, by definition, cause the body to produce antibodies which act against them. You inherit certain antigens which are on your red blood cells. Sometimes these antigens are absent from your RBC. If you are type B, you have B antigens. Type A has A antigens, AB has AB antigens and type O has no antigens. If you are type AB, you can receive AB blood from some one else.
Why don't people say 'allergens' often?
Well that might be due to the fact that not all people have allergies. Therefore they aren't affected by allergens like others. For instance i am affected my many allergens, whereas my elder sister is not affected by allergens at all. As you see i used the word 'allergens' several times. Most of the time the word 'allergens' just doesn't come up in a majority of conversations.
What typoes of cells produce antigens?
All cells produce antigens, or cell surface markers. The only question is whether the antigens are self antigens which means they belong in the body or they're foreign antigens which means they are an invading bacteria or virus (or a cancerous cell).
What are some examples of antigens?
Examples of antigens are poisons, splinters and microorganisms.
What types of antigens are recognized by B cells?
Processed fragments of protein antigens displayed on surfaces of body cells.
A person who is B positive will have?
B antigens, antibodies to A, and Rh antigens
What is the medical term meaning blood antigens?
Blood antigens :D
