activation of d-glucose transport was half-maximal at 49.6 +/- 5.4 pmol/l ( diarginylinsulin ) , 44.8 +/- 5.8 pmol/l ( insulin ) and at 476.7 +/- 134.3 pmol/l ( proinsulin ) .
C0021641
insulin
C0033362
proinsulin