| Role | Gene | Name | |
|---|
| 1-pyrroline-4-hydroxy-2-carboxylate deaminase (EC 3.5.4.22) | QEN71_RS20260 | | |
| 4-hydroxyproline epimerase (EC 5.1.1.8) | QEN71_RS20265 | | |
| | QEN71_RS34280 | | |
| Aldehyde dehydrogenase (EC 1.2.1.3) in 4-hydroxyproline catabolic gene cluster | No genes | | |
| Amino acid permease in 4-hydroxyproline catabolic gene cluster | No genes | | |
| D-amino acid dehydrogenase (EC 1.4.99.1) family protein in hydroxy-L-proline catabolic cluster | No genes | | |
| D-amino-acid oxidase (EC 1.4.3.3) | QEN71_RS20270 | | |
| D-proline reductase, 23 kDa subunit (EC 1.21.4.1) | No genes | | |
| D-proline reductase, 26 kDa subunit (EC 1.21.4.1) | No genes | | |
| D-proline reductase, 45 kDa subunit (EC 1.21.4.1) | No genes | | |
| Delta 1-pyrroline-5-carboxylate dehydrogenase domain protein | No genes | | |
| Delta-1-pyrroline-5-carboxylate dehydrogenase (EC 1.5.1.12) | QEN71_RS24490 | | |
| | QEN71_RS29240 | | |
| | QEN71_RS36430 | | |
| | QEN71_RS36450 | | |
| Dipeptidyl peptidase IV in 4-hydroxyproline catabolic gene cluster | No genes | | |
| Hypothetical, similar to sarcosine oxidase alpha subunit, 2Fe-2S domain | QEN71_RS20275 | | |
| Ketoglutarate semialdehyde dehydrogenase (EC 1.2.1.26) | QEN71_RS13720 | | |
| | QEN71_RS18010 | | |
| | QEN71_RS31035 | | |
| | QEN71_RS31370 | | |
| | QEN71_RS32515 | | |
| L-Proline/Glycine betaine transporter ProP | QEN71_RS05605 | | |
| | QEN71_RS15975 | | |
| | QEN71_RS19315 | | |
| | QEN71_RS20250 | | |
| | QEN71_RS31385 | | |
| | QEN71_RS33295 | | |
| | QEN71_RS33615 | | |
| | QEN71_RS35345 | | |
| | QEN71_RS38815 | | |
| | QEN71_RS38965 | | |
| | QEN71_RS39400 | | |
| Microbial collagenase, secreted (EC 3.4.24.3) | No genes | | |
| Not a Proline racemase, nor 4-hydroxyproline epimerase [missing catalytic residues] | QEN71_RS07995 | | |
| | QEN71_RS34300 | | |
| | QEN71_RS41310 | | |
| Predicted 4-hydroxyproline dipeptidase | No genes | | |
| Predicted regulator PutR for proline utilization, GntR family | QEN71_RS07670 | | |
| | QEN71_RS11695 | | |
| | QEN71_RS11725 | | |
| | QEN71_RS17000 | | |
| | QEN71_RS20820 | | |
| | QEN71_RS21285 | | |
| | QEN71_RS32540 | | |
| | QEN71_RS32595 | | |
| | QEN71_RS37050 | | |
| ProQ: influences osmotic activation of compatible solute ProP | No genes | | |
| Proline dehydrogenase (EC 1.5.99.8) (Proline oxidase) | QEN71_RS29240 | | |
| | QEN71_RS34680 | | |
| | QEN71_RS36430 | | |
| Proline iminopeptidase (EC 3.4.11.5) | QEN71_RS30235 | | |
| Proline racemase (EC 5.1.1.4) | QEN71_RS36500 | | |
| Proline-specific permease proY | No genes | | |
| Proline/sodium symporter PutP (TC 2.A.21.2.1) | No genes | | |
| PutR, transcriptional activator of PutA and PutP | No genes | | |
| Putative beta-galactosidase in 4-hydroxyproline catabolic gene cluster | No genes | | |
| Putative oxidoreductase in 4-hydroxyproline catabolic gene cluster | QEN71_RS20280 | | |
| Similar to eukaryotic Peptidyl prolyl 4-hydroxylase, alpha subunit (EC 1.14.11.2) | QEN71_RS10605 | | |
| Transcriptional repressor of PutA and PutP | QEN71_RS29240 | | |
| Ureidoglycolate/malate/sulfolactate dehydrogenase family (EC 1.1.1.-) | No genes | | |
| putPA fragment of control region | No genes | | |