The chemical reactions and pathways resulting in the breakdown of GTP, guanosine triphosphate [goid 6184] [pmid 2463916] [evidence IDA]; The chemical reactions and pathways resulting in the breakdown of phenylalanine, 2-amino-3-phenylpropanoic acid [goid 6559] [evidence IEA]; The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine [goid 6729] [pmid 17101830] [evidence IMP]; The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine [goid 6729] [pmid 9445252] [evidence IDA]; The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine [goid 6729] [pmid 7678411] [evidence IDA]; The chemical reactions and pathways resulting in the formation of nitric oxide, nitrogen monoxide (NO), a colorless gas only slightly soluble in water [goid 6809] [pmid 9445252] [evidence NAS]; The process that modulates the force with which blood travels through the circulatory system. The process is controlled by a balance of processes that increase pressure and decrease pressure [goid 8217] [evidence IEA]; The process that modulates the force with which blood travels through the circulatory system. The process is controlled by a balance of processes that increase pressure and decrease pressure [goid 8217] [pmid 17717598] [evidence IMP]; The process that modulates the force with which blood travels through the circulatory system. The process is controlled by a balance of processes that increase pressure and decrease pressure [goid 8217] [evidence IEA]; A change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a of lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria [goid 32496] [pmid 7678411] [evidence IDA]; A change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a of lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria [goid 32496] [pmid 9445252] [evidence IDA]; A change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a of lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria [goid 32496] [pmid 15604419] [evidence IEP]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon [goid 34341] [pmid 7678411] [evidence IDA]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon [goid 34341] [pmid 12607127] [evidence IDA]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon [goid 34341] [pmid 9445252] [evidence IDA]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interferon-gamma stimulus. Interferon-gamma is also known as type II interferon [goid 34341] [pmid 15604419] [evidence IEP]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a tumor necrosis factor stimulus [goid 34612] [pmid 9445252] [evidence IDA]; The chemical reactions and pathways resulting in the formation of dopamine, a catecholamine neurotransmitter and a metabolic precursor of noradrenaline and adrenaline [goid 42416] [pmid 16338639] [evidence IDA]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pain stimulus. Pain stimuli cause activation of nociceptors, peripheral receptors for pain, include receptors which are sensitive to painful mechanical stimuli, extreme heat or cold, and chemical stimuli [goid 48265] [evidence ISS]; Any process by which an organism voluntarily modulates its posture, the alignment of its anatomical parts [goid 50884] [pmid 7874165] [evidence IMP]; Any process that activates or increases the activity of the enzyme nitric-oxide synthase [goid 51000] [pmid 17717598] [evidence IMP]; Any process that activates or increases the activity of the enzyme nitric-oxide synthase [goid 51000] [pmid 12176133] [evidence IDA]; Any process that activates or increases the activity of the enzyme nitric-oxide synthase [goid 51000] [pmid 15721862] [evidence IDA]; The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer [goid 51260] [pmid 11087823] [evidence IDA]