Table 1. Relative NO-producing activities of NOS in various cellular compartments.

NOS isoform	Subcellular location	Activity	Reference(s)
eNOS	PM	High	[42,49,90]
eNOS	Cytosol	Low	[5,115]
eNOS	Golgi (cis)	Moderate	[49]
eNOS	Golgi (trans)	Low	[49]
eNOS	Nucleus	Very low	[50]
eNOS	Mitochondrion	Low	[50]
eNOS	Cytoskeleton (actin)	Low	[43,44]
eNOS	Cytoskeleton (tubulin)	High	[51]
iNOS	Peroxisome	Unknown	[61]
iNOS	PM	High	[50]
iNOS	Nucleus	High	[50]
iNOS	Mitochondrion	High	[50]