Table 2.
Resistomes of wastewater and AS samples, classified by gene families.
| Number of ARGs | |||||
|---|---|---|---|---|---|
| INFL | AS- LOS | CW-LOS | AS-NLOS2 | CW-NLOS2 | |
| Class A beta-lactamase | 77 | 22 | 38 | 20 | 47 |
| Class C beta-lactamase | 22 | 2 | 4 | 3 | 6 |
| Class D beta-lactamase | 75 | 35 | 39 | 39 | 52 |
| Metallo-beta-lactamase | 24 | 37 | 43 | 43 | 71 |
| Rifampin ADP-ribosyltransferase | 60 | 33 | 54 | 63 | 81 |
| Erm 23S ribosomal RNA methyltransferase | 34 | 10 | 13 | 14 | 17 |
| Aminoglycoside acetyltransferase | 19 | 9 | 7 | 10 | 11 |
| Aminoglycoside nucleotidyltransferase | 22 | 8 | 9 | 7 | 13 |
| Aminoglycoside phosphotransferase | 10 | 5 | 6 | 6 | 9 |
| ABC-F type ribosomal protection | 22 | 4 | 6 | 3 | 4 |
| Chloramphenicol acetyltransferase | 20 | 5 | 5 | 9 | 5 |
| Trimethoprim-resistant dihydrofolate reductase | 19 | 3 | 4 | 2 | 2 |
| Quaternary ammonium compound efflux SMR transporter | 14 | 6 | 8 | 7 | 10 |
| Lincosamide nucleotidyltransferase | 13 | 4 | 5 | 5 | 8 |
| Tetracycline efflux MFS transporter | 12 | 6 | 6 | 7 | 6 |
| Tetracycline resistance ribosomal protection protein | 12 | 6 | 6 | 4 | 7 |
| Others | 89 | 26 | 38 | 24 | 44 |
| Total | 544 | 221 | 291 | 266 | 393 |