PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1592117-4 1992 In addition cross-linking of [alpha-32P]GTP with GTP-binding proteins was demonstrated in model systems using different purified GTPases, human c-H-ras p21, transducin from bovine retina, polypeptide elongation factor Tu (EF-Tu) from T. thermophilus and initiation factor 2 (IF2) from T. thermophilus. Guanosine Triphosphate 40-43 H3 histone pseudogene 16 Homo sapiens 152-155