Table 2. Periplasmic-binding proteins of high-affinity transporters inferred to be from the SAR324 clade.
| SAR324 homolog | No. of unique peptides | No. of peptides |
No. of spectra |
||||
|---|---|---|---|---|---|---|---|
| January 05 m | January 60 m | May 05 m | May 60 m | ||||
| Organic solutes | |||||||
| Amino acids | AFIA_0198 | 3 | 4 | 1 | 15 | 3 | 13 |
| Amino acids | AFIA_0212 | 3 | 3 | 0 | 2 | 0 | 4 |
| Dipeptide | AFIB_0487 | 3 | 4 | 0 | 10 | 0 | 7 |
| Dipeptide | AFIA_0556 | 7 | 8 | 2 | 14 | 3 | 34 |
| Sugar | AFIA_1706 | 5 | 6 | 0 | 10 | 4 | 17 |
| Mannitol/chloroaromatic | AFIB_0724 | 3 | 4 | 0 | 2 | 0 | 3 |
| Spermidine/putrescine | AFIA_1712 | 2 | 2 | 0 | 2 | 1 | 4 |
| Inorganic solutes | |||||||
| Nitrate/sulfonate/bicarbonate | AFIB_0217 | 3 | 4 | 0 | 15 | 4 | 5 |
| Phosphate/phosphonate | AFIB_1101 | 2 | 3 | 0 | 9 | 3 | 4 |
| Iron (Fe3+) | AFIA_1002 | 2 | 2 | 0 | 2 | 0 | 2 |