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Table 1 Distribution of putative virulence factors and bacteriocins detected in silico among O1:K1 NMEC strains

From: Genome sequencing of strains of the most prevalent clonal group of O1:K1:H7 Escherichia coli that causes neonatal meningitis in France

Genes Rate (%) among STc95 subgroups/clusters
A (n = 4) D-1 (n = 28) D-2/D-3b (n = 6) Total (N = 38)
Adhesins
papGII 100 100 100 100
iha 0 3.6 100 18.4
Iron transport
iucC, iutA 25 92.6 100 86.8
fyuA, irp 100 100 100 100
iroN, D 50 100 100 94.7
chuA 100 100 100 100
sitA 75 100 100 97.4
Bacteriocins
cvaA, C 50 100 0 78.9
cvi 50 100 100 94.7
cia 0 100 0 73.7
imm 50 100 0 78.9
mchB, C 0 3.6 0 2.6
mchF 50 100 0 78.9
ColV plasmid related
tsh 25 0 0 2.6
etsC 50 100 0 78.9
ompTpa 50 100 0 78.9
hlyF 50 100 0 78.9
mig-14 50 100 0 78.9
issa 50 100 0 78.9
traj 0 100 0 73.7
eitB 25 0 0 2.6
Toxin
hlyC 0 0 100 15.8
clbB, N 100 0 0 10.5
sat 0 0 100 15.8
vat 75 92.6 100 92.1
senB 50 0 0 5.3
Others
epeA 0 3.6 0 2.6
ireA 100 100 100 100
gad 100 100 100 100
  1. a: plasmidic genes
  2. b: D-2 and D-3 clusters have been merged since they harbor identical genetic determinants except for fimH (Fig. 2)
  3. Only virulence genes present at least in one strain are indicated, other genes not detected are not shown [see Additional file 4]