Shared Flashcard Set

Details

Serological Reagents
For Test One
25
Biology
Undergraduate 3
02/20/2013

Additional Biology Flashcards

 


 

Cards

Term
Antigens (definition 1)
Definition
Any molecule that binds specifically to an antibody
Any molecule bound by MHC and presented to T cells
Not necessarily an immunogen
Term
Immunogen
Definition
Antigen that provokes and immune response
Capable of eliciting the antibody formation when introduced into a host
Term
MHC (acronym)
Definition
Major Histocompatability Complex
Term
Haptens
Definition
Small molecules that stimulate immune response when covalently bonded to a protein
Some are controlled substances
Term
Example of a hapten that is a controlled substance (2)
Definition
Cocaine
Amphetamines
Term
Epitope (definition 1)
Definition
The actual molecular structure that is bound by the Ab or Tcell receptor
aka determinant site
Term
Types of epitopes
Definition
Linear / continueous vs. Conformational/discontinuous
Term
Multivalent (definition 1)
Definition
Most immunogens
Having more than one epitope
Term
Antigen (definition 2)
Definition
Any foreign substance
Also: self-antigens
Term
MHC (definition)
Definition
Protein that attracts Tcells to the antigens (because Tcells cannot just bind to them correctly)
Term
Immunogens (definition 2)
Definition
Worse than antigens
ALWAYS stimulate an immune response
Term
Haptens in medicine
Definition
Can be conjugated to a virus/antigen to elicit immune response
NOT allowed in the US as medication because of side effects
Term
Epitope (definition 2)
Definition
Area that the antibody "sees" as the part it is going to bind to on the antigen / immunogen
Term
Multivalent (definition 2)
Definition
Immunogens with several epitopes that antibodies can recognize and bind to
Term
Antibodies
Definition
Capable of binding to an antigen
Glycoproteins
Term
Immunoglobulin Classes
Definition
IgG, IgA, IgM, IgD, IgE
Term
Where are immunoglobulins found?
Definition
Serum portion of blood
Term
Structure of Antibodies
Definition
Two heavy chains and two light chains held together by sulfide bnds.
Globular structures.
Between the heavy and light chains is an area that identifies the epitope.
Term
Hypervariable Region
Definition
On the end of the heavy & light chains
The "memory" portion for binding to antigens
Term
Constant Chain
Definition
Each class has their own constant chain
Term
Variable Chain
Definition
All anitbodies have different variable chains
Term
Plasma Cells
Definition
Mature B-cells that produce antibodies
Term
Functions of antibodies
Definition
Neutralize
Opsonization
Can NOT destroy
Term
Neutralize
Definition
Antibodies bind to antigen, so their binding site is taken up and they can't bind to hosts
Term
Opsonization
Definition
Attack to antigen and flag them for destruction
They attract the killer Tcells or compliment proteins
Supporting users have an ad free experience!