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. 2014 Nov;20(11):1848–1856. doi: 10.3201/eid2011.131215

Figure 3.

Figure 3

Nucleotide sequence variations in the penicillin-binding protein 1A (pbp1a) gene of Streptococcus pneumoniae. Row 1, S. pneumoniae R6; row 2, serotype (Ser) 8-ST53; row 3, serotype 8-ST63; row 4, Sweden 15A-ST63 reference strain. Polymorphic sites are numbered in a vertical format. Nucleotides are numbered according to their positions in the gene. Only polymorphic sites are shown. Dots indicate a nucleotide that is identical to that in the R6 sequence. The putative recombination site is shaded in gray.