PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31627442-7 2019 On X-ray irradiation, the cells enhanced their OH radical generation, which subsequently induced gammaH2AX, a marker of DNA double-strand breaks in their nuclei, but decreased mitochondrial membrane potential. oh radical 48-58 H2A.X variant histone Mus musculus 98-107