transposon tagging of the phw400 plasmid to produce phw401 and the transfer of this derivative into a variant of strain w30864 lacking phw400 confirmed the conclusion that the phw400 plasmid encodes one or more functions involved in o antigen ( lipopolysaccharide ) biosynthesis and bacterial virulence .
C0069180
o
C0023810
lipopolysaccharide