label: 5,10-methyleneTHF polyglutamate + glycine <=> tetrahydrofolate polyglutamate (THF polyglutamate) + serine (Xenopus tropicalis)
label_lc: 5,10-methylenethf polyglutamate + glycine <=> tetrahydrofolate polyglutamate (thf polyglutamate) + serine (xenopus tropicalis)