The Expression of Soluble and Active Recombinant Haemophilus influenzae IgA1 Protease in E. coli
Figure 1
IgA1 protease expression constructs. Only the IgA1 protease domains with or without the signal peptide were cloned into pET21a and pCold IV expression vectors. S: signal peptide for targeting to the periplasm; a, b, c: the three IgA1 protease self-cleavage sites delineating the different domains.
