PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3022838-2 1986 It was found that a 4 hr cold stress led to a 7-fold increase in the amount of thermogenin mRNA; injection of norepinephrine had a significant but smaller effect. Norepinephrine 110-124 uncoupling protein 1 (mitochondrial, proton carrier) Mus musculus 79-90