Table 1.

Normal model cytosolic concentrations (μM)

Folates	Methionine cycle	Transsulfuration	Other
THF = 4.61	Met = 49.2	Cysta = 36.9	Ser = 563
510CH = 0.28	SAM = 81.1	Cys = 195	Gly = 924
510CH2 = 0.51	SAH = 19.1	GluCys = 9.8	Sarc = 9.16
10fTHF = 3.41	Hcy = 1.12	GSH = 6591	DMG = 0.71
5mTHF = 4.50		GSSG = 61.3	Aicart = 0.94
DHF = 0.039		Glut = 3219	HCOOH = 13.1