. "Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids." . . . . . . "nucleobase, nucleoside, nucleotide and nucleic acid metabolism" . "nucleobase-containing compound metabolic process" . "cellular nucleobase, nucleoside, nucleotide and nucleic acid metabolic process" . "cellular nucleobase, nucleoside, nucleotide and nucleic acid metabolism" . "nucleobase, nucleoside and nucleotide metabolic process" . "nucleobase, nucleoside, nucleotide and nucleic acid metabolic process" . . . . . . . . .