PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33068408-7 2020 Using CDDR, we found HF-NHEJ to be strictly dependent on DNA Ligase IV, XRCC4 and XLF, members of the canonical branch of NHEJ pathway (c-NHEJ). cddr 6-10 X-ray repair cross complementing 4 Homo sapiens 72-77