| gptkbp:instanceOf | gptkb:biological_pathway gptkb:hormone_system
 
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                                | gptkbp:abbreviation | gptkb:RAS 
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                                | gptkbp:activatedBy | sympathetic nervous system low blood pressure
 low sodium concentration
 
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                                | gptkbp:component | gptkb:renin gptkb:angiotensin-converting_enzyme
 gptkb:angiotensin_I
 gptkb:angiotensin_II
 gptkb:aldosterone
 gptkb:angiotensinogen
 
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                                | gptkbp:discoveredBy | gptkb:Eduardo_Braun-Menéndez gptkb:Irvine_Page
 gptkb:Leonardo_Rosenfeld
 gptkb:Reginald_Smith
 
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                                | gptkbp:influenced | water retention cardiac output
 vasoconstriction
 aldosterone secretion
 sodium retention
 systemic vascular resistance
 
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                                | gptkbp:inhibitedBy | gptkb:angiotensin-converting_enzyme_inhibitors gptkb:angiotensin_receptor_blockers
 
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                                | gptkbp:medicalTreatment | gptkb:aldosterone_antagonists ACE inhibitors
 angiotensin II receptor blockers
 direct renin inhibitors
 
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                                | gptkbp:processor | conversion of angiotensin I to angiotensin II vasoconstriction
 conversion of angiotensinogen to angiotensin I
 feedback inhibition by angiotensin II
 increase in blood pressure
 increase in sodium reabsorption
 increase in water reabsorption
 stimulation of aldosterone release
 
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                                | gptkbp:regulates | blood pressure fluid balance
 
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                                | gptkbp:relatedTo | heart failure hypertension
 chronic kidney disease
 
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                                | gptkbp:siteOfAction | gptkb:adrenal_gland gptkb:kidney
 blood vessels
 
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                                | gptkbp:bfsParent | gptkb:ACE_(gene) gptkb:Angiotensin-converting_enzyme
 
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                                | gptkbp:bfsLayer | 6 
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                                | https://www.w3.org/2000/01/rdf-schema#label | renin-angiotensin system 
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