Table 2. Comparison of different stable transgenic expression systems for the production of 2G12 mAB in plants.

Species	Tag	Organ	Promoter	Yield		Reference
Tobacco	-	Leaf	CaMV 35S	17–18 μg/mL	(45 μg/g)*	[37]
	KDEL KDELELP, KDEL	leafseedLeaf	CaMV 35S Faba bean USPCaMV 35S	0.4% of TSP0,3% of TSP1% of TSP	(2.8 μg/g)**(1.7 μg/g)**(6.9 μg/g)**	[11][11][11]
	ELP, KDEL	Seed	Faba bean USP	1% of TSP	(5.8 μg/g)**	[11]
Maize	KDEL-	Kernels/ endospermKernels/ endosperm	Rice Glut1Rice Glut1	30 μg/g75 μg/g		[5][6]
Rice	-	Kernels/ endosperm	Rice Glut1	46 μg/g		[33]
Barley	KDEL	Grain/ endosperm	Oat Glo1	0.4% of TSP	(160 μg/g)	this study

* line selected over several generations and optimized conditions for growth and harvest

**units were converted based on the average TSP values obtained with the respective extraction method [10]