tokens: Lymphoid cells transformed by Abelson murine leukemia virus have provided one of the classic models for study of early B-cell development and immunoglobulin rearrangement .
folded_tokens: lymphoid cells transformed by abelson murine leukemia virus have provided one of the classic models for study of early b-cell development and immunoglobulin rearrangement .
labels: B-cell_type I-cell_type O O B-virus I-virus I-virus I-virus O O O O O O O O O O B-other_name I-other_name I-other_name O B-protein_family_or_group O O