Developing Lymphocytes – an extra credit question for micro

29 Apr

Both B and T Cells express surface antigen receptors, the B Cell Receptor (BCR) and T Cell Receptor (TCR), respectively. During development each of these kinds of immature lymphocytes will express early versions of these receptors on their surface (Pre-BCR and Pre-TCR).

What is the purpose of expressing these receptors long before they will ever come into contact with antigens?

answer quickly – the first correct (and complete) answer gets 3 pts extra credit on the upcoming exam!


Posted by on April 29, 2015 in Uncategorized


2 responses to “Developing Lymphocytes – an extra credit question for micro

  1. Ivy Poetter

    April 30, 2015 at 10:35 am

    They express these early to see if they bind to self.

  2. Laura Pryor

    May 2, 2015 at 8:10 pm

    Because antigen receptors are randomized and may be unstable. This step ensures that the receptor is stably expressed. 🙂


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