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. 2016 Aug 23;6:31946. doi: 10.1038/srep31946

Figure 1. Variation of orf13 in K57 capsular polysaccharide synthesis (cps) regions.

Figure 1

(A) Comparison of the cps between the K57 reference strain (Ref-K57) and A1142. Open reading frames (ORFs) are shown as arrows. Ref-K57 (upper) contains a 981-bp orf13 (green, residue 15948–16928) encoding a putative acyltransferase family protein. In the PLA isolate A1142 (lower), this gene is interrupted by a gene encoding a putative transposase (red, residue 16519–17193). The blue arrows indicate the positions of the orf13 PCR primers (K57-orf13-F and K57-orf13-R) used for panel B analysis (see below). (B) PCR analysis of orf13 in a total of 23 K. pneumoniae K57 strains. No. 1: strain Ref-K57; No. 2: strain A1142; No. 3–23: other collected K57 clinical strains. The arrows indicate two forms of orf13. M: DNA marker.