TABLE 1.

Different host system performances in the production of recombinant spidroins

Expression host	Spider silk protein	Size (kDa)	Reported maximum yield	Reference or source
E. coli	MaSp1	100.7	2,700 mg/liter	25
		284.9	500 mg/liter
E. coli	MaSp1	285	2,000 mg/liter	47
		556	1,240 mg/liter
P. pastoris	MaSp1	65	663 mg/liter	28
S. cerevisiae	MaSp1	94	450 mg/liter	48
E. coli	MaSp1	10–110	22.1 mg/liter	This work
Transgenic mice	MaSp1	40	11.7 mg/liter	49
N. tobacum (leaf)	Flagelliform	>72 to >250	36 mg/kg	42
N. tobacum (seed)	Flagelliform	>72 to >460	190 mg/kg	43
E. coli	FSLP	10–90	16.5 g/kg	This work