The methionine salvage pathway in Bacillus subtilis

BMC Microbiology

Table 2 Expression of mtn::lacZ transcriptional fusions.

	β-galactosidase Activity (U mg-1 of protein)^a
	ED1 medium with sulfate		ED1 medium with methionine
Strain	exp^b	stat	exp	stat
BFS1851^c	62	41	53	33
BSHP7020	217	121	181	161
BSHP7014	579	267	113	95
BFS1852	442	251	108	92
BSHP7016	294	139	61	47
BFS1853	280	112	57	33

a. for the β-galactosidase activity assay the bacteria were grown in the ED minimal medium with either sulfate or methionine as sulfur source. b. exp = exponential growth phase, stat= stationary growth phase. c. BFS1851 = mtnU::lacZ, BSHP7020 = mtnV::lacZ, BSHP7014 = mtnW::lacZ, BFS1852 = mtnX::lacZ, BSHP7016 = mtnY::lacZ, BFS1853 = mtnZ::lacZ.

ISSN: 1471-2180