PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15906320-1 2005 The mechanism of the hydrolysis reaction of guanosine triphosphate (GTP) by the protein complex Ras-GAP (p21(ras) - p120(GAP)) has been modeled by the quantum mechanical-molecular mechanical (QM/MM) and ab initio quantum calculations. Guanosine Triphosphate 44-66 H3 histone pseudogene 16 Homo sapiens 105-113 15906320-1 2005 The mechanism of the hydrolysis reaction of guanosine triphosphate (GTP) by the protein complex Ras-GAP (p21(ras) - p120(GAP)) has been modeled by the quantum mechanical-molecular mechanical (QM/MM) and ab initio quantum calculations. Guanosine Triphosphate 68-71 H3 histone pseudogene 16 Homo sapiens 105-113 15906320-4 2005 At the first stage, a unified motion of Arg789 of GAP, Gln61, Thr35 of Ras, and the lytic water molecule results in a substantial spatial separation of the gamma-phosphate group of GTP from the rest of the molecule (GDP). Guanosine Triphosphate 181-184 H3 histone pseudogene 16 Homo sapiens 71-74