Jawless vertebrates represented by lampreys and hagfish mount antigenspecific immune responses using variable lymphocyte receptors. These receptors generate diversity comparable to that of T-cell and B-cell receptors by assembling multiple leucine-rich repeat modules with highly variable sequences. Although it is true that jawed and jawless vertebrates have structurally unrelated antigen receptors, their adaptive immune systems have much in common. Most notable is the conservation of lymphocyte lineages. It appears that specialized lymphocyte lineages emerged in a common vertebrate ancestor and that jawed and jawless vertebrates co-opted different antigen receptors within the context of such lymphocyte lineages.
CITATION STYLE
Kasahara, M. (2015). Variable lymphocyte receptors: A current overview. In Results and Problems in Cell Differentiation (Vol. 57, pp. 175–192). Springer Verlag. https://doi.org/10.1007/978-3-319-20819-0_8
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