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Immunology
from Feldman's lectures
21
Medical
Graduate
09/20/2009

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Cards

Term
These enzymes do the DNA recombination required for VDJ selection
Definition
Rag-1 and Rag-2
Term
These palindromic nucleotides are generated to fill in the ends left by Rag-1 and Rag-2
Definition
P nucleotides
Term
This enzyme adds N nucleotides without needing a DNA template
Definition
Terminal transferase (TdT)
Term
Name the 3 professional antigen-presenting cells
Definition

Dendritic Cell

Macrophage

B-lymphocyte

Term
Name the partner of B7 that is required to activate a naive T-cell
Definition
CD28
Term
Somatic hypermutation of the antigen binding site is called ________________
Definition
affinity maturation
Term
This class of antibodies is mainly mucosal
Definition
IgA
Term
This class of antibodies is the only one that can cross the placenta
Definition
IgG
Term
This class of antibody is implicated in cold agglutination and is a pentamer
Definition
IgM
Term
This antibody is implicated in warm agglutination
Definition
IgG
Term
This class of antibodies is frequently elevated in allergic reactions or when a person is infected with parasites
Definition
IgE
Term
This antibody is the best at opsonization
Definition
IgG
Term
These two classes of antibodies are good at activating complement system
Definition
IgM and IgG
Term
This class of antibody is good at mast cell sensitizaiton
Definition
IgE
Term
For extracellular pathogens we need _________
Definition
Th2 Helper T-cells
Term
For intracellular pathogens in phagosomes we need ____________
Definition
Th1 Helper T-cells
Term
For intracellular viruses, we need ________
Definition
CD8+ T cells
Term
Positive selection of T-cells determines _____
Definition
which MHC it binds to and whether it will be CD4 or CD8
Term
Negative selection of T-cells _____
Definition
removes the self-reactive ones
Term
accumulated changes in the epitopes of hemagglutinin protein such that previous antisera are no longer reactive is termed ____
Definition
antigenic drift
Term
The process by which a B-cell undergoes somatic hypermutation of its antigen binding site is called__
Definition
affinity maturation
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