Lymphocyte Antigen Receptors - BCR and TCR

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10 Terms

1
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Which receptor is expressed by B cells?

B cell receptor (BCR)

2
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What form of immunoglobulin is the BCR?

Membrane-bound immunoglobulin

3
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What happens to the BCR after B cell activation?

It is secreted as an antibody

4
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Which receptor is expressed by T cells?

T cell receptor (TCR)

5
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Is the TCR secreted?

No, it is membrane-bound only

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What does the TCR recognise?

Peptide antigens bound to MHC molecules

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What cells present antigens to TCRs?

Antigen-presenting cells (APCs)

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What type of antigen does BCR recognise?

Free (unprocessed) antigen

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What type of antigen does TCR recognise?

Processed peptide fragments

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What molecule is required for TCR recognition?

MHC