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Table 4 Recombinational replacement of emm with a new emm type.

From: Relationships between emm and multilocus sequence types within a global collection of Streptococcus pyogenes

emm pattern

No, of isolates

No. of STs

No. of emm type-variable STs (%)

No. of emm types *

No. of emm types associated with emm type variable STs (%)

No. of recombinational events

No. of recombinational events per locus per ST

A-C

156

42

3 (7.1)

29

8 (27.6)

5

0.119

D

181

91

9 (9.9)

62

23 (37.1)

14

0.154

E

240

123

2 (1.6)

61

4 (6.6)

2

0.016

All

577

256

14

152

35

21

0.096 average

  1. * One ST scored as pattern D (ST3) and 1 ST scored as pattern E (ST150) contain isolates with rearranged emm region yielding a new emm type, but could not be assigned a pattern; they are listed here with the pattern D and E groups, respectively. Other emm pattern-undefined isolates are not included in chart.