has role phosphate(3-) cofactor phosphate ion dihydrogenphosphate hydrogenphosphate A phosphate ion that is the conjugate base of dihydrogenphosphate. HPO4(2-) HYDROGENPHOSPHATE ION INORGANIC PHOSPHATE GROUP [P(OH)O3](2-) [PO3(OH)](2-) hydrogen phosphate hydrogen(tetraoxidophosphate)(2-) hydrogenphosphate hydrogentetraoxophosphate(2-) hydrogentetraoxophosphate(V) hydroxidotrioxidophosphate(2-) phosphate Saccharomyces cerevisiae metabolite divalent inorganic anion