ChEBI: Guanosine 5'-monophosphate is a purine ribonucleoside 5'-monophosphate having guanine as the nucleobase. It has a role as a metabolite, a biomarker, an Escherichia coli metabolite and a mouse metabolite. It is a guanosine 5'-phosphate and a purine ribonucleoside 5'-monophosphate. It is a conjugate acid of a guanosine 5'-monophosphate(2-).