glycine metabolic process glycine biosynthetic process https://github.com/geneontology/go-ontology/issues/31525 MetaCyc:PWY-8551 glycine anabolism glycine biosynthesis MetaCyc:GLYSYN-PWY glycine formation MetaCyc:GLYSYN-THR-PWY biological_process GO:0006545 glycine synthesis The chemical reactions and pathways resulting in the formation of glycine, aminoethanoic acid. MetaCyc:GLYSYN-ALA-PWY MetaCyc:GLYCINE-SYN2-PWY serine family amino acid biosynthetic process proteinogenic amino acid biosynthetic process