tokens: Unexpectedly , expression of the same EBNA2 -oestrogen receptor fusion protein in established human B cell lymphoma lines resulted in growth retardation or growth arrest upon the addition of oestrogen .
folded_tokens: unexpectedly , expression of the same ebna2 -oestrogen receptor fusion protein in established human b cell lymphoma lines resulted in growth retardation or growth arrest upon the addition of oestrogen .
labels: O O O O O O B-protein_molecule B-lipid O O O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O O O O O O O O O O O B-lipid O