Table 1.

Cytosolic and mitochondrial concentrations and velocities at steady-state.

Cytosolic				Mitochondrial
Concentrations (μM)		Velocities (μM/h)		Concentrations (μM)		Velocities (μM/h)
THF	3.74	MTD	-113	THF	20.8	MTD	2106
5,10-CH = THF	0.26	MTCH	-113	5,10-CH = THF	1.55	MTCH	2106
5,10-CH2-THF	0.46	FTS	546	5,10-CH2-THF	1.7	FTS	-1639
10f-THF	3.23	FTD	69.4	10f-THF	16.0	FTD	467
5mTHF	5.55	SHMT	9.2			SHMT	84.3
DHF	0.035	NE	46.1			NE	279
Aicar	0.95	AICART	182			GDC	1560
		DHFR	120			SDH	122
		TS	120			DMGD	60.7
Ser	551	MTHFR	47.7	Ser	1963
Gly	830	PGT	182	Gly	1858
HCOOH	14.5	MS	47.7	HCOOH	59.9
Met	51.9	BHMT	60.7
SAM	63.6	CBS	99.7
SAH	13.1	DNMT	147
Hcy	1.10	GNMT	61.4
		MAT-I	132
		MAT-III	76.1