organism: Mus musculus
attributes.tag: source_name
attributes.value: Pro-B cell
attributes.tag: strain
attributes.value: C57BL/6
attributes.tag: genotype
attributes.value: Rag2(-/-)
attributes.tag: cell preparation
attributes.value: Ex-vivo, CD19 enriched
attributes.tag: cell sorting strategy
attributes.value: CD19 enrichment MACS sort
attributes.tag: chip antibody
attributes.value: anti-BrdU agarose beads (Santa Cruz IIB5)