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. Author manuscript; available in PMC: 2016 Apr 19.
Published in final edited form as: Mol Microbiol. 2015 May 15;97(2):360–380. doi: 10.1111/mmi.13033

Fig. 3.

Fig. 3

Predicted galactose metabolism operons in Streptococcus pneumoniae. Gene color codes are as follows: white: PTS transporter; white with black polka dots: hypothetical or degenerate gene; light gray: β-galactosidase; dark gray: metabolic enzymes of the Leloir and tagatose 6-phosphate pathways; and black: putative transcriptional regulators. Predicted CcpA-binding sites are indicated by ‘cre’ in the promoter regions. Operons are drawn nearly to scale. The regulator genes SP_0058, lacR-2 and galR were individually inactivated by replacement with a spectinomycin resistance cassette.