. "US" . "Proc.Natl.Acad.Sci.Usa" . "PNASA6" . "0040" . "0027-8424" . "102" . "16955" . "16960" . "10.1073/pnas.0504289102" . . "Identification of an Escherichia coli O157:H7 heme oxygenase with tandem functional repeats" . . . . . . .