V. Dartois et al., GENETIC-ANALYSIS AND OVEREXPRESSION OF LIPOLYTIC-ACTIVITY IN BACILLUS-SUBTILIS, Applied and environmental microbiology, 60(5), 1994, pp. 1670-1673
The previously cloned Bacillus subtilis lipase gene (lip) was mapped o
n the chromosome and used in the construction of a B. subtilis derivat
ive totally devoid of any lip sequence. Homologous overexpression was
performed in this strain by subcloning the lip open reading frame on a
multicopy plasmid under the control of a strong gram-positive promote
r. A 100-fold overproducing strain was obtained, which should facilita
te purification of the secreted protein. Furthermore, the Delta lip st
rain BCL1050 constitutes an ideal host for the cloning of heterologous
lipase genes.