Multiple Choice
The MARCH-1 E3-ubiquitin ligase is expressed in B cells, dendritic cells, and macrophages. The pathway regulated by MARCH-1 is targeted by some pathogens in an immune evasion strategy. In this strategy, the pathogens encode:
A) A protein that induces degradation of MARCH-1
B) A protein that mimics MARCH-1 and functions similarly
C) A protein that binds to MARCH-1 and inhibits its function
D) A protein that is induced by IL-10 in macrophages and dendritic cells
E) A protein that induces degradation of CD86
Correct Answer:

Verified
Correct Answer:
Verified
Q20: Three major cell types, dendritic cells, macrophages,
Q21: The adaptive immune system uses multiple strategies
Q22: Several types of pathogens encode proteins that
Q23: The extensive polymorphism of MHC genes in
Q24: Alloreactivity refers to the ability of T
Q25: MHC polymorphism at individual MHC genes appears
Q26: The MHC locus encodes a large number
Q27: In the 1980s, a mutant strain
Q28: Multiple mechanisms contribute to create a wide
Q30: The diagram in Figure shows a