TABLE 2.
Numbers of different bacterial taxa that are predicted to perform each of the experimentally observed micropollutant biotransformations
| Micropollutant | Experimentally observed biotransformationa | No. of different bacterial taxa predicted to perform biotransformationb |
|---|---|---|
| Atenolol | Amide hydrolysis | 4,516 |
| Azoxystrobin | Carboxylic acid ester hydrolysis | 3,894 |
| Diazinon | Aromatic thiophosphate hydrolysis | 2,56 |
| Ethofumesate | Ether dealkylation | 131 |
| Isoproturon | Urea dealkylation and urea didealkylation | 0 |
| Propachlor | Glutathione coupling, dehalogenation, and halosubstitution | 939 |
| Ranitidine | S-oxidation and N-oxidation | 8 |
| Trinexepac ethyl | Carboxylic acid ester hydrolysis | 3,894 |
| Valsartan | Amide dealkylation | 0 |
| Venlafaxine | Amine dealkylation and ether dealkylation | 68 |
a
The experimentally observed biotransformation types and biotransformation products were reported previously by Helbling et al. (24).
b
The NCBI protein search tool was used to search eight publically available sequence databases and retrieve all taxonomically assigned protein sequences for each UM-BBD-predicted enzyme.