Table 5.

Physicochemical properties of AcrA, AcrB, and TolC proteins of the Escherichia coli isolates.

Parameters	Values
	AcrA (397 aa)	AcrB (253 aa)	TolC (389 aa)
Molecular weight (Da)	42,283.78	27,093.00	42,602.59
Theoretical pI	6.06	5.54	10.05
Extinction coefficients (M−1 cm−1)	0.447	0.275	1.205
The estimated half-life (E. coli, in vivo)	>10 h	3 min	>10 h
Instability index	29.46	24.35	43.51
Aliphatic index	91.44	119.49	69.07
Grand average of hydropathicity (GRAVY)	−0.266	0.690	−0.587

Abbreviation: aa, amino acids.