PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2833702-3 1988 It is assumed that an external signal is detected by a membrane molecule (or detector) that stimulates the conversion of p21.GDP to p21.GTP which then interacts with a target molecule (or effector) to generate an internal signal. Guanosine Triphosphate 136-139 H3 histone pseudogene 16 Homo sapiens 121-124 2833702-3 1988 It is assumed that an external signal is detected by a membrane molecule (or detector) that stimulates the conversion of p21.GDP to p21.GTP which then interacts with a target molecule (or effector) to generate an internal signal. Guanosine Triphosphate 136-139 H3 histone pseudogene 16 Homo sapiens 132-135