4-amino-4-deoxychorismate synthase activity

Note that the name 'para-aminobenzoic acid synthase' was initially given to the 'aminodeoxychorismate synthase' activity before the additional 4-amino-4-deoxychorismate lyase activity was discovered. It is the lyase activity that actually produces para-aminobenzoic acid from 4-amino-4-deoxychorismate.

4-amino-4-deoxychorismate synthase activity

Note that the name 'para-aminobenzoic acid synthase' was initially given to the 'aminodeoxychorismate synthase' activity before the additional 4-amino-4-deoxychorismate lyase activity was discovered. It is the lyase activity that actually produces para-aminobenzoic acid from 4-amino-4-deoxychorismate.