attributes.tag: source_name
attributes.value: bone marrow
attributes.tag: chip antibody
attributes.value: anti-Pax5 (rabbit polyclonal Ab, detecting the paired domain (amino acids 17-145) (16); Busslinger laboratory)
attributes.tag: strain
attributes.value: C57BL/6
attributes.tag: cell type
attributes.value: in vitro Pro-B cell
attributes.tag: genotype
attributes.value: Rag2(-/-)