https://www.selleckchem.com/products/ot-82.html
Jawless vertebrates diverged from an ancestor of jawed vertebrates approximately 550 million years ago. They mount adaptive immune responses to repetitive antigenic challenges, despite lacking major histocompatibility complex molecules, immunoglobulins, T cell receptors, and recombination-activating genes. Instead of B cell and T cell receptors, agnathan lymphocytes express unique antigen receptors named variable lymphocyte receptors (VLRs), which generate diversity through a gene conversion-like mechanism. Although gnathostome antigen re
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