TABLE 3.
Strain | Phylogroup | AmpC name | Hydrolysis spectrum | Amino acida at position:
|
|||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
9 | 124 | 141 | 175 | 85 | 194 | 214 | 235 | 238 | 239 | 241 | 244 | 278 | 282 | 287 | 288 | 296 | 298 | 300 | 309 | 350 | 351 | ||||
EC1 | B1 | AmpC-EC1 | Narrow | T | E | T | Q | N | P | G | R | M | N | R | N | V | S | S | G | H | V | A | R | V | A |
EC2 | A | AmpC-EC2 | Narrow | A | — | A | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
EC3 | D | AmpC-EC3 | Narrow | A | D | A | — | T | S | — | Q | L | K | L | T | L | I | — | D | R | — | — | C | — | T |
EC4 | D | AmpC-EC4 | Narrow | A | D | A | — | T | S | — | Q | L | K | L | T | — | I | — | D | R | — | — | C | — | T |
EC5 | B2 | AmpC-EC5 | Narrow | — | — | A | K | — | S | — | Q | L | K | L | — | — | I | — | D | R | — | P | — | — | — |
154297 | B2 | AmpC-S4 | Narrow | — | — | A | K | — | S | — | Q | L | K | F | — | — | I | — | D | R | — | P | — | F | — |
EC13 | A1 | AmpC-EC13 | Extended | A | — | A | — | — | — | R | — | — | — | — | — | — | — | N | — | — | — | — | — | — | — |
EC14 | A | AmpC-EC14 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | — | — | — | L | — | — | — | — |
EC15 | A | AmpC-EC15 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | — | — | P | — | — | — | — | — |
EC16 | A | AmpC-EC16 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | C | — | — | — | — | — | — | — |
EC17 | A | AmpC-EC17 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | — | — | P | — | — | — | — | — |
EC18 | B1 | AmpC-EC18 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | N | — | — | — | — | — | — | — |
EC19 | A | AmpC-EC19 | Extended | A | — | A | — | — | — | — | — | — | — | — | — | — | — | — | — | P | — | — | — | — | — |
KL | B1 | AmpC-KL | Extended | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | F | — |
Dashes indicate residues identical to those of the AmpC-EC1 sequence. The residues involved in resistance to extended-spectrum cephalosporins are underlined.