TY - GEN AU - van den Berg,Timo K AU - Yoder,Jeffrey A AU - Litman,Gary W TI - On the origins of adaptive immunity: innate immune receptors join the tale SN - 1471-4906 PY - 2004///0310 KW - Amino Acid Sequence KW - Animals KW - Antigens, Differentiation KW - Evolution, Molecular KW - Humans KW - Immunoglobulins KW - immunology KW - Membrane Glycoproteins KW - Multigene Family KW - Neural Cell Adhesion Molecule L1 KW - Receptors, Antigen KW - Receptors, Antigen, T-Cell KW - Receptors, Immunologic KW - Sequence Homology, Amino Acid N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review UR - https://doi.org/10.1016/j.it.2003.11.006 ER -