Table 5.

Cyt. c reduction rates of iNOS holoenzyme in the presence of crowder.^a

[Crowder] (w/v)	Cyt. c reduction (min−1)
0 %	1403 ± 49
3% Ficoll 70	1510 ± 38
7% Ficoll 70b	1668 ± 70
11% Ficoll 70	1795 ± 108
14% Ficoll 70c	1928 ± 130
4.6% Dextran 70b	1680 ± 88
7.5% Dextran 70c	1947 ± 122

^aRates are the average of at least three assays. The final concentration of human iNOS holoenzyme is 1.5 nM.

^bThe solution viscosity with the added 7 % Ficoll 70 or 4.6 % Dextran 70 is the same (2.7 cP).

^cThe solution viscosity with the added 14 % Ficoll 70 or 7.5% Dextran 70 is the same (5.0 cP).