PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12371859-1 2002 The photochemical denitrogenation of the cyclopentene-annelated DBH-type azoalkanes 1 has been examined in solution as a function of bridgehead substitution and temperature. Cyclopentanes 41-53 dopamine beta-hydroxylase Homo sapiens 64-67