TABLE 1

[¹³C]leucine enrichments in tissue fluid and bound in mitochondrial and sarcoplasmic proteins in each tissue

Tissue	Tissue fluid (mole % excess)	Mitochondrial protein (atom % excess)	Sarcoplasmic protein (atom % excess)
Liver
Saline	4.95 ± 0.37	0.132 ± 0.010	0.079 ± 0.015
Insulin	5.27 ± 0.36	0.102 ± 0.014	0.091 ± 0.011
INS+AA	3.91 ± 0.26*†	0.070 ± 0.007*	0.054 ± 0.008†
Heart
Saline	3.98 ± 0.28	0.081 ± 0.004	0.085 ± 0.005
Insulin	4.50 ± 0.24*	0.094 ± 0.003*	0.105 ± 0.004*
INS+AA	2.88 ± 0.04†	0.068 ± 0.003*†	0.079 ± 0.004†
Muscle
Saline	2.96 ± 0.17	0.020 ± 0.003	0.011 ± 0.002
Insulin	2.63 ± 0.23	0.036 ± 0.005*	0.017 ± 0.004
INS+AA	2.22 ± 0.10*	0.025 ± 0.003	0.010 ± 0.002