| GO | Name |
| GO:0003924 | GTPase activity |
| GO:0003934 | GTP cyclohydrolase I activity |
| GO:0005509 | calcium ion binding |
| GO:0005525 | GTP binding |
| GO:0005634 | nucleus |
| GO:0005654 | nucleoplasm |
| GO:0005737 | cytoplasm |
| GO:0005829 | cytosol |
| GO:0006729 | tetrahydrobiopterin biosynthetic process |
| GO:0006809 | nitric oxide biosynthetic process |
| GO:0008217 | regulation of blood pressure |
| GO:0008270 | zinc ion binding |
| GO:0010460 | positive regulation of heart rate |
| GO:0014916 | regulation of lung blood pressure |
| GO:0030742 | GTP-dependent protein binding |
| GO:0031369 | translation initiation factor binding |
| GO:0031410 | cytoplasmic vesicle |
| GO:0031965 | nuclear membrane |
| GO:0032496 | response to lipopolysaccharide |
| GO:0032991 | protein-containing complex |
| GO:0034341 | response to interferon-gamma |
| GO:0034612 | response to tumor necrosis factor |
| GO:0035998 | 7,8-dihydroneopterin 3'-triphosphate biosynthetic process |
| GO:0042311 | vasodilation |
| GO:0042416 | dopamine biosynthetic process |
| GO:0042559 | pteridine-containing compound biosynthetic process |
| GO:0042802 | identical protein binding |
| GO:0042803 | protein homodimerization activity |
| GO:0044306 | neuron projection terminus |
| GO:0044877 | protein-containing complex binding |
| GO:0045776 | negative regulation of blood pressure |
| GO:0046146 | tetrahydrobiopterin metabolic process |
| GO:0046654 | tetrahydrofolate biosynthetic process |
| GO:0048265 | response to pain |
| GO:0050884 | neuromuscular process controlling posture |
| GO:0051000 | positive regulation of nitric-oxide synthase activity |
| GO:0051019 | mitogen-activated protein kinase binding |
| GO:0065003 | protein-containing complex assembly |
| GO:2000121 | regulation of removal of superoxide radicals |