Table 3. Distribution of virulence genes in ST2 and ST164 CRAB isolates.
| Classification | Virulence gene | ST2 ( n = 106 ) | ST164 (n=19) | χ 2 | P value | |
|---|---|---|---|---|---|---|
| Adherence | ompA | 106 | 19 | / | / | |
| ata | 0 | 19 | 117.362 | <0.001 | ||
| fimT, fimU, fimV, gspO/pilD | 106 | 19 | / | / | ||
| hmw1B, hmw2B, hmw2C | 1 | 0 | – | 1.000 | ||
| pilA | 106 | 0 | 117.362 | <0.001 | ||
| pilB, pilC, pilE, pilF, pilG, pilH, pilI, pilJ, pilM, pilN, pilO, pilP, pilQ, pilR, pilS, pilT, pilU, pilV, pilW, pilX, pilY1 | 106 | 19 | / | / | ||
| tsaP | 105 | 19 | – | 1.000 | ||
| Biofilm formation | AdeFGH efflux pump | abaR/F/G/H | 106 | 19 | / | / |
| Bap | bap | 105 | 0 | 110.375 | <0.001 | |
| Csu fimbriae | csuA, csuB, csuC, csuA/B | 102 | 19 | – | 1.000 | |
| csuD, csuE | 101 | 19 | – | 1.000 | ||
| PNAG | pgaA, pgaB, pgaC, pgaD, plc1, plc2, plcD | 106 | 19 | / | / | |
| Immune evasion | Immune evasion | lpsB, lpxA, lpxB, lpxC, lpxD, lpxL, lpxM | 106 | 19 | / | / |
| galE, galU | 106 | 19 | / | / | ||
| licB, licC, licD | 1 | 0 | – | 1.000 | ||
| pgi | 106 | 19 | / | / | ||
| pseB, pseC, pseF, pseG, pseH, pseI | 9 | 0 | 0.700 | 0.403 | ||
| tviB | 14 | 19 | 62.464 | <0.001 | ||
| ACICU_RS00395 | 94 | 0 | 63.268 | <0.001 | ||
| ACICU_RS00400 | 94 | 0 | 63.268 | <0.001 | ||
| ACICU_RS00405 | 94 | 0 | 63.268 | <0.001 | ||
| ACICU_RS00445 | 8 | 0 | 0.531 | 0.466 | ||
| ACICU_RS00450 | 8 | 0 | 0.531 | 0.466 | ||
| ACICU_RS00455* | 33 | 0 | 8.037 | 0.005 | ||
| ACICU_RS00460 | 8 | 0 | 0.531 | 0.466 | ||
| ACICU_RS00465 | 8 | 0 | 0.531 | 0.466 | ||
| ACICU_RS00470* | 21 | 0 | 3.218 | 0.073 | ||
| ACICU_RS00475 | 91 | 0 | 59.968 | <0.001 | ||
| ACICU_RS00485 | 106 | 19 | / | / | ||
| ACICU_RS00500 | 106 | 19 | / | / | ||
| ACICU_RS04565 | 106 | 19 | / | / | ||
| ACICU_RS04570 | 80 | 19 | 4.490 | 0.034 | ||
| ACICU_RS04575 | 80 | 19 | 4.490 | 0.034 | ||
| ACICU_RS04580 | 81 | 19 | 4.224 | 0.04 | ||
| ACICU_RS04585 | 81 | 19 | 4.224 | 0.04 | ||
| ACICU_RS04590 | 81 | 18 | 4.224 | 0.04 | ||
| ACICU_RS04595 | 80 | 18 | 4.490 | 0.034 | ||
| ACICU_RS04605 | 80 | 19 | 4.490 | 0.034 | ||
| ACICU_RS04610 | 106 | 19 | / | / | ||
| ACICU_RS16840 | 106 | 19 | / | / | ||
| Iron uptake | Acinetobactin | barA, barB, basA, basB, basC, basD, basF, basG, basH, basI, basJ | 106 | 19 | / | / |
| bauA | 106 | 0 | 117.362 | <0.001 | ||
| bauB, bauC, bauD, bauE, bauF, entE | 106 | 19 | / | / | ||
| hemO elaster | hemO | 80 | 19 | 4.49 | 0.034 | |
| Regulation | Quorum sensing | abaI | 106 | 19 | / | / |
| bfmRS | bfmR, bfmS | 106 | 19 | / | / | |
| Serum resistance | phpG | pbpG | 106 | 19 | / | / |
| Secretion system | T6SS | clpV/tssH, hcp/tssD | 95 | 0 | 66.123 | <0.001 |
| tagX | 97 | 0 | 72.444 | <0.001 | ||
| tssA, tssK, tssL | 97 | 0 | 72.444 | <0.001 | ||
| tssB, tssC, tssE, tssG, tssM | 95 | 0 | 62.133 | <0.001 | ||
| tssF | 92 | 0 | 62.464 | <0.001 | ||
| vgrG/tssI | 106 | 19 | / | / | ||
| T2SS | gspC, gspD, gspE1, gspE2, gspF, gspG, gspH, gspI, gspK, gspL, gspM, gspN | 106 | 19 | / | / | |
–, Fisher’s exact test was used when the expected count in at least one cell was <1, yielding exact P-values without chi-square approximation (χ2 statistic not reported).
/, Statistical analysis not performed due to identical resistance rates.
*Bold value, P<0.05.