5,10-methylenetetrahydrosulfopterin + glycine + H2O <=> tetrahydrosulfopterin + L-serine
5,10-methylenetetrahydrosulfopterin + glycine + h2o <=> tetrahydrosulfopterin + l-serine
5,10-methylenetetrahydrosulfopterin + glycine + H2O <=> tetrahydrosulfopterin + L-serine
5,10-methylenetetrahydrosulfopterin + glycine + h2o <=> tetrahydrosulfopterin + l-serine