TABLE 1.

Strains used in this study

Strain	Relevant genotype	Source or reference
B. subtilis 168	trpC2
E. coli DH5α	Δ(argF-lac)U169 (φ80DlacZM15) recA	Life Technologies, Inc.
E. coli BL21(DE3)	hsdS gal (Δclts857 ind 1 sam7 nin5 lacUV5-T7 gene 1)	Novagen
E. coli TOP10	(φ80DlacZM15) ΔlacX74 recA	Invitrogen
E. coli SF100	F ΔlacX74 galE galK thi rpsL (strA) ΔphoA(PvuII) ΔompT	7
E. coli JRG4008	AN387 dctA::spc	12