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. 2020 May 5;36:100690. doi: 10.1016/j.nmni.2020.100690

Table 2.

Antimicrobial resistance profiles and deduced amino acid substitution patterns in the transpeptidase region of penicillin-binding protein 3 (PBP3) of Haemophilus influenzae strains

Reference Strains Resistance profile Cefinase/bla genes MICs
ftsI groupa
Mutations in ftsI gene
AMP AMC CTX D350 S357 M377 S385 L389 P392 N422 G490 A502 V511 R517 N526 S532 F535 V547 I549 Y557 N569
Hi 3 0.25 0.25 0.012 NA
Hi 7 0.25 0.38 0.016
Hi 9 TET 0.38 0.25 0.012
Hi 12 TET 0.19 0.125 0.023
Hi 13 0.25 0.125 0.016 P
Hi 11 TET 0.125 0.125 0.016 I
Hi 8 SXT 0.25 0.25 0.012 I
Hi 6 0.75 0.25 0.047 I
Hi 5 TET 0.5 0.38 0.08 s I
Hi 2 0.25 0.25 0.016 F
Hi 14 AMX-TET 2 0.125 0.064 Group I H
Hi 1 AMX 4 0.125 0.023 A H
Hi 10 AMX-TET 4 0.38 0.023 A H
Hi 17a AMX-AMC-SXT +/blaTEM-1 >256 2 0.064 Group IIb N I V K I
Hi 18 a AMX-AMC +/blaTEM-1 >256 4 0.047 Group Iib N I E V K
Hi 4 a AMX-AMC-TET-SXT +/blaTEM-1 >256 2 0.047 Group Iib N I E V K I
Hi 15b AMX-AMC +/blaTEM-1 >256 2 0.032 Group II N I I∗ V K
Hi 19 AMX-AMC-CTX +/blaTEM-1 >256 >256 1 Group–III–like+ N N I T F H T I H S
Hi 16 AMX-AMC-CTX-TET 24 4 0.5 Group III+ N N I T F T K

AMC, ampicillin/clavulanic acid; AMP, ampicillin, CTX, cefotaxime.

a Classification according to Ubukata et al. [30] (Group I, II and III), Dabernat et al. [3] (Subgroup II: IIa, IIb, IIc and IId), García-Cobos et al. [4] (Group–III–like), Skaare et al. [23] (Group III+ and Group–III–like+): –, negative; NA, non-assigned resistance group, ∗, new mutation.