PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12596920-2 2002 After GTP/GDP exchange on the a subunit of transducin (Talpha) by illuminated rhodopsin, the GTP-bound form Talpha (GTP/Talpha) interacts with the regulatory subunit (Pgamma) of PDE6 to activate cGMP hydrolytic activity. Guanosine Diphosphate 10-13 rhodopsin Homo sapiens 78-87