Table 3. AARS and AA concentrations in competition assays.

AARS	AARS conc (nM)	Nat AA conc (µM)	Analog conc. (mM)
AlaRS	3000	50	50
ArgRS	480	20	20
AspRS	500	50	50
GlnRS	500	50	50
GluRS	500	10	10
HisRS	500	15	15
IleRS	220	10	10
LeuRS	500	30	30
LysRS	560	10	10
MetRS	1100	50	50
PheRS	320	5	5
ProRS	500	50	50
ThrRS	950	50	50
TrpRS	500	30	30
TyrRS	580	5	5
ValRS	1000	50	50