TABLE 2.

Strains used in this study

Strain	Descriptiona	Phenotype	Source or reference
S. coelicolor
M145	Prototroph SCP1− SCP2−		Lab collection
N985	bldB::aphI SCP1− SCP2−	Bld	7
N17	bldK::Specr SCP1− SCP2−	Bld	19
N376	ramR::AprrSCP1− SCP2−	Bld	20
J2401	whiA::Hygr SCP1− SCP2−	Whi	8
J2402	whiB::Hygr SCP1− SCP2−	Whi	8
J2400	whiG::HygrSCP1− SCP2−	Whi	8
J2210	whiH::Hygr SCP1− SCP2−	Whi	8
J2407	sigF::TsrrSCP1− SCP2−	Whi	8
GSB1	ssgB::Aprr SCP1− SCP2−	Whi	11
E. coli
Er2-1	F′ lacIQleuB6 thi-1 fhuA31 lacY1 tsx-78 galK2 galT22 supE44 hisG4 rpsL136 (Strr) xyl-5 mtl-1 dam13::Tn9 (Camr) dcm-6 mcrB1 mcrA hsdR2 (rK− mK+)		16
XL-1 Blue	recA1 endA1 gyrA96 thi-1 glnV44 hsdR17 supE44 relA1 lac [F′ proAB lacIqZΔM15 Tn10 (Tetr)]		Stratagene

^aAntibiotic resistance markers are apramycin (Apr^r), ampicillin (Amp^r), hygromycin (Hyg^r), kanamycin (Kan^r), and spectinomycin (Spec^r).