Table 6.

Methionine conversion to cystine and intermediates

Met:Cys/TSAA ratio	15NReca	15N-MetRecb	MetCys + interm.c	AARec (Cys)d	15NRec(Cys)e	CysMetf	Metinterm.g
	(%)
44:56	100 ± 3.89	49 ± 4.62	51 ± 2.83	93 ± 10.92	66 ± 2.94	27 ± 7.83	24 ± 8.60
50:50	100 ± 2.80	47 ± 4.62	53 ± 2.41	103 ± 10.52	72 ± 3.89	31 ± 4.31	22 ± 3.61
56:44	96 ± 2.76	42 ± 3.77	54 ± 1.71	111 ± 9.50	68 ± 7.73	43 ± 4.11	12 ± 6.31

^{a 15}N_Rec (Table 3) from Met

^{b 15}N-Met_Rec (Table 5) excluding excreta

^c Met_{Cys + interm} = ¹⁵N_{Rec (Met)} - (¹⁵N-Met_Rec)

^d AA_Rec (Table 4) of Cys

^{e 15}N_Rec (Table 3) from Cys, excluding excreta

^f Cys_Met = AA_{Rec (Cys)} - ¹⁵N_{Rec (Cys)}

^g Met_interm. = Met_{Cys + interm.} - Cys_Met