Fig. 1.

Arrangement of the OCL1 gene cluster and position of IS insertions in Australian A. baumannii isolates. OCL1 has been described previously [2]. Arrows represent genes showing the direction of transcription, and gene names are above. Flanking genes are black, genes predicted to encode products required for nucleotide-linked sugar synthesis are light grey, and dark grey genes predict glycosyltransferases. White denotes genes that encode proteins of unknown function with possible functions indicated in the gene names. The gtrOC6 and gtrOC7 names were used because a total of 7 glycosyltransferases are needed to construct OC1. IS elements, insertion positions and OC locus names of the resulting OCL1 variants are indicated below.