PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9661152-9 1998 As an example of such investigations, the time-resolved FTIR studies on the GTPase reaction of H-ras p21 using caged GTP is presented. Guanosine Triphosphate 76-79 H3 histone pseudogene 16 Homo sapiens 101-104