Fig. 2From: Formaldehyde formation in the glycine cleavage system and its use for an aldolase-based biosynthesis of 1,3-propanediolHPLC analysis of formaldehyde from different samples. a 1 mM formaldehyde standard. b GCS reaction mixture after 2 h. c GCS reaction mixture without adding GCS enzymes after 2 hBack to article page