In the Class I MHC Pathway of Antigen Presentation, Cytoplasmic

question 5

Multiple Choice

In the class I MHC pathway of antigen presentation, cytoplasmic proteins are tagged for proteolytic degradation by covalent linkage with which of the following molecules?

• A)Calreticulin
• B)Nuclear factor (NF)-ĸB
• C)Tapasin
• D)Ubiquitin
• E)Calnexin

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Definitions:

Conditioned Response

The learned response to a previously neutral stimulus that has become associated with an unconditioned stimulus.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally elicits a reflexive response without the need for prior learning.

Associated

Connected or linked with something else in relation to ideas, feelings, or memories.

Reflex

It is an involuntary, immediate response to a specific stimulus without conscious thought.