PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6301538-2 1983 The phosphorylation of rhodopsin, the major protein-staining band (Mr approximately 34 000-38 000), was markedly and specifically increased by exposure of rod outer segments to light; various guanine nucleotides (10 microM) including GMP, GDP, and GTP also specifically increased rhodopsin phosphorylation (up to 5-fold). Guanosine Diphosphate 239-242 rhodopsin Homo sapiens 23-32