PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12719724-0 2003 Nitric oxide promotes p53 nuclear retention and sensitizes neuroblastoma cells to apoptosis by ionizing radiation. Nitric Oxide 0-12 tumor protein p53 Homo sapiens 22-25 12719724-1 2003 Nitric oxide (NO) is a potent activator of the p53 tumor suppressor protein. Nitric Oxide 0-12 tumor protein p53 Homo sapiens 47-50