PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22390194-4 2012 The N-oxides 1, 5, and 6 have closed-shell singlet ground states and low-lying, singlet biradical (SP-1, SP-6) or biradicaloid (SP-5) excited states. n-oxides 4-12 Sp1 transcription factor Homo sapiens 99-109