tokens: The bipartite human interleukin-4 ( IL-4 ) receptor was functionally expressed in murine pro-B cells and activated by human IL-4 to evoke intracellular signaling .
folded_tokens: the bipartite human interleukin-4 ( il-4 ) receptor was functionally expressed in murine pro-b cells and activated by human il-4 to evoke intracellular signaling .
labels: O B-protein_molecule I-protein_molecule B-protein_molecule O B-protein_molecule O O O O O O B-cell_type B-cell_type I-cell_type O O O B-protein_molecule B-protein_molecule O O O O O