PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17363570-4 2007 DNA-PKcs(KD) and XRCC4(KD) cells presented an increased sensitivity to various inducers of double-strand breaks (DSBs) and a 70% to 80% reduction of in vitro NHEJ activity. dsbs 113-117 X-ray repair cross complementing 4 Homo sapiens 17-22 ceptor 1, skeletal muscle Mus musculus 79-82