FIG. 4.
(A) Paper disk bioassay of N. uniformis culture supernatants against E. coli SC12155. (B and C) Reverse-phase HPLC analysis of the N. uniformis supernatants from (i) wild-type N. uniformis, (ii) N. uniformis CAT L4, (iii) L4 with nocardicin C internal standard, (iv) L4 with nocardicin A internal standard, (v) N. uniformis CAT L4 (pULVK2T/nocL), and (vi) N. uniformis CAT L4 (pULVK2T/nocL) with nocardicin A internal standard.