title: This is about the in and the out.
authors.forename: Peter J F
authors.initials: PJ
authors.lastname: Henderson
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Baldwin
mesh_terms: D004926:Escherichia coli / Q000201:enzymology*; D029968:Escherichia coli Proteins / Q000737:chemistry* / Q000378:metabolism*; D027981:Symporters / Q000737:chemistry* / Q000378:metabolism*
chemical_list: D029968:Escherichia coli Proteins; D027981:Symporters; C033903:xylE protein, E coli