Term Name:	guanine biosynthetic process
Synonyms:	guanine anabolism, guanine biosynthesis, guanine formation, guanine synthesis
Definition:	The chemical reactions and pathways resulting in the formation of guanine, 2-amino-6-hydroxypurine, a purine that is one of the five main bases found in nucleic acids and a component of a number of phosphorylated guanosine derivatives whose metabolic or regulatory functions are important.
Ontology:	GO: Biological Process [GO:0046099]    QuickGO    AmiGO