Serine hydroxymethyltransferase (SHMT) is a pyridoxal phosphate (PLP) (Vitamin B6) dependent enzyme (EC2.1.2.1) which plays an important role in cellular one-carbon pathways by catalyzing the reversible, simultaneous conversions of L-serine to glycine and tetrahydrofolate (THF) to 5,10-methylenetetrahydrofolate (5,10-CH2-THF).[1] This reaction provides the largest part of the one-carbon units available to the cell.[2]
^Appaji Rao N, Ambili M, Jala VR, Subramanya HS, Savithri HS (April 2003). "Structure-function relationship in serine hydroxymethyltransferase". Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics. 1647 (1–2): 24–29. doi:10.1016/s1570-9639(03)00043-8. PMID12686103.