PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27722529-2 2016 The density of charge (qeff = q/n) in the metal-to-metal charge transfer excited states (CTMM: Agnq-pyrazine-Agn-q) smoothly tunes the electronic structure of the junction, especially the metal-to-molecule charge transfer states (CT0 and CT1) and the first excited singlet of pyrazine (S1,Pz). Pyrazines 100-108 cardiotrophin 1 Homo sapiens 238-241