Test 1 Immunoglobulins Flashcards
Gamma heavy chain
IgG
Mu heavy chain
IgM
Alpha heavy chain
IgA
Epsilon heavy chain
IgE
Delta heavy chain
IgD
180,000 D molecular weight
IgG
900 kD molecular weight
IgM
400 kD molecular weight
IgA
180 molecular weight
IgE and IgD
IgG shape
monomer
IgM shape
pentamer
IgA shape
dimeric; monomer/polymer (2IgA molecules joined by J chain)
IgE shape
monomer (in serum)
IgD shape
monomer
Most clinically significant
IgG
Destroys antigen coated transfused red cells
IgG
Macrophage Fc receptors
IgG
Reaction temp at 37 degrees
IgG
Activates complement
IgG and IgM
Crosses the placenta
IgG
Hemlytic disease of the newborn
IgG
Naturally occuring
IgM
Interfers with detection of IgG anitbodies
IgM
Primary immune response
IgM
Subclasses IgM1, IgM2
IgM
First immunoglobulin produced in fetus
IgM
Antibodies in ABO blood system
IgM
Confined to blood stream
IgM
Antibody-antigen agglutination
IgM
May enhance autoimmune RBC hemolysis
IgA
Sound in secretions
IgA
No bacteriocidal effects
IgA
Localizes infectious agents
IgA
Subclasses IgA1, IgA2
IgA
Triggers cellular release of histamine
IgE
Use antihistamines during transfusion to prevent allergic react/ anaphylaxis
IgE
Shortests half life, highest catabolic rate, lowest synthesis rate
IgE
Bound by Fc portion to basophils and mast cells
IgE
Increased vascular permeability
IgE
May relate to maturation/ differentiation of B cells
IgD
No blood group antibodies
IgD