Table 1. Comparison of substrate dependent transporters among selected marine bacteria.
| Organism | Taxonomic affiliation | Genome Size (Mb) | Total number of ORFs | TBDT* | ABC transporter† | PTS | TRAP | Trophic strategy‡ |
| Citromicrobium bathyomarinum JL354 | Alphaproteobacteria-Sphingomonadales | 3.27 | 3235 | 27 (8) | 22(7) | 1 | 0 | N/A |
| Citromicrobium sp. JLT1363 | Alphaproteobacteria-Sphingomonadales | 3.12 | 3003 | 31(10) | 25 (8) | 1 | 1 | N/A |
| Erythrobacter litoralis HTCC2594 | Alphaproteobacteria-Sphingomonadales | 3.05 | 3011 | 18 (6) | 23 (8) | 3 | 0 | extreme oligotrophs |
| Sphingomonas wittichii RW1 | Alphaproteobacteria-Sphingomonadales | 5.92 | 4850 | 134 (23) | 34 (6) | 4 | 0 | extreme oligotrophs |
| Roseobacter denitrificans OCh 114 | Alphaproteobacteria-Roseobacter clade | 4.32 | 4129 | 1 (0) | 110 (25) | 2 | 22 | extreme oligotrophs |
| Dinoroseobacter shibae DFL 12 | Alphaproteobacteria-Roseobacter clade | 4.42 | 4192 | 3 (1) | 86 (19) | 4 | 28 | extreme oligotrophs |
| Ruegeria pomeroyi DSS-3 | Alphaproteobacteria-Roseobacter clade | 4.6 | 4252 | 0 (0) | 102 (22) | 4 | 26 | moderate copiotrophs |
| Candidatus Pelagibacter ubique HTCC1062 | Alphaproteobacteria-SAR11 clade | 1.31 | 1354 | 0 (0) | 24 (18) | 0 | 3 | extreme oligotrophs |
| Candidatus Pelagibacter ubique HTCC1002 | Alphaproteobacteria-SAR11 clade | 1.33 | 1393 | 0 (0) | 23 (17) | 0 | 2 | extreme oligotrophs |
| Rhodopseudomonas palustris CGA009 | Alphaproteobacteria | 5.46 | 4820 | 17 (3) | 117 (21) | 5 | 8 | moderate oligotrophs |
| Prochlorococcus marinus str. MIT 9202 | Cyanobacteria | 1.69 | 1890 | 1 (1) | 40 (24) | 0 | 0 | extreme oligotrophs |
| Prochlorococcus marinus str. MIT 9301 | Cyanobacteria | 1.64 | 1906 | 0 (0) | 33 (20) | 0 | 0 | extreme oligotrophs |
| Synechococcus sp. WH 7803 | Cyanobacteria | 2.37 | 2533 | 0 (0) | 47 (20) | 0 | 0 | extreme oligotrophs |
| Synechococcus sp. WH 8102 | Cyanobacteria | 2.43 | 2519 | 0 (0) | 50 (21) | 0 | 0 | extreme oligotrophs |
| Synechococcus sp. PCC 7002 | Cyanobacteria | 3.41 | 3187 | 6 (2) | 78 (23) | 0 | 0 | extreme oligotrophs |
| Cytophaga hutchinsonii ATCC 33406 | CFB group bacteria | 4.43 | 3785 | 5 (1) | 42 (9) | 0 | 0 | moderate copiotrophs |
| Flavobacteria bacterium BBFL7 | CFB group bacteria | 3.08 | 2592 | 10 (3) | 32 (10) | 0 | 1 | moderate copiotrophs |
| Flavobacterium johnsoniae UW101 | CFB group bacteria | 6.1 | 5017 | 47 (8) | 41 (7) | 0 | 0 | moderate copiotrophs |
| Flavobacteria bacterium MS024-3C | CFB group bacteria | 1.52 | 1384 | 7(5) | 16(11) | 0 | 0 | N/A |
| Polaribacter sp. MED152 | CFB group bacteria | 2.97 | 2611 | 10(3) | 22(7) | 0 | 0 | N/A |
| Salinibacter ruber DSM 13855 | CFB group bacteria | 3.59 | 2801 | 16 (4) | 59 (16) | 0 | 3 | moderate copiotrophs |
| gamma proteobacterium HTCC2207 | Gammaproteobacteria-SAR92 clade | 2.62 | 2388 | 17 (6) | 21 (8) | 2 | 1 | extreme oligotrophs |
| gamma proteobacterium NOR5-3 | Gammaproteobacteria-NOR5/OM60 clade | 4.20 | 3671 | 27 (6) | 37 (9) | 2 | 2 | extreme oligotrophs |
| gamma proteobacterium HTCC2143 | Gammaproteobacteria-BD1-7 clade | 3.93 | 3662 | 22 (6) | 39 (10) | 2 | 2 | extreme oligotrophs |
| gamma proteobacterium HTCC2148 | Gammaproteobacteria-NOR5/OM60 clade | 4.31 | 3827 | 37 (9) | 49 (11) | 2 | 2 | extreme oligotrophs |
| gamma proteobacterium HTCC2080 | Gammaproteobacteria-NOR5/OM60 clade | 3.58 | 3185 | 28 (8) | 17 (5) | 2 | 1 | extreme oligotrophs |
| Congregibacter litoralis KT71 | Gammaproteobacteria-NOR5/OM60 clade | 4.33 | 3941 | 26 (6) | 27 (6) | 2 | 2 | extreme oligotrophs |
| Pseudoalteromonas haloplanktis TAC125 | Gammaproteobacteria-Alteromonadales | 3.85 | 3485 | 34 (9) | 29 (8) | 4 | 0 | moderate copiotrophs |
| Idiomarina loihiensis L2TR | Gammaproteobacteria-Alteromonadales | 2.84 | 2628 | 28 (10) | 29 (10) | 4 | 0 | moderate copiotrophs |
| Shewanella baltica OS185 | Gammaproteobacteria-Alteromonadales | 5.31 | 4394 | 33 (6) | 53 (10) | 7 | 3 | extreme copiotrophs |
| Alteromonadales bacterium TW-7 | Gammaproteobacteria-Alteromonadales | 4.10 | 3783 | 32 (8) | 42 (10) | 4 | 0 | N/A |
| gamma proteobacterium NOR51-B | Gammaproteobacteria | 3.26 | 2930 | 32(10) | 44(13) | 4 | 3 | N/A |
| Nitrosococcus oceani ATCC19707 | Gammaproteobacteria | 3.52 | 3017 | 7 (2) | 34 (10) | 5 | 1 | moderate oligotrophs |
| Vibrio vulnificus YJ016 | Gammaproteobacteria | 5.21 | 5098 | 7 (1) | 95 (18) | 24 | 9 | extreme copiotrophs |
| Photobacterium profundum SS9 | Gammaproteobacteria | 6.40 | 5489 | 7 (1) | 84 (13) | 5 | 10 | extreme copiotrophs |
| Acinetobacter baumannii ATCC17978 | Gammaproteobacteria-Acinetobacter | 4.00 | 3367 | 22(6) | 34(9) | 2 | 0 | moderate oligotrophs |
| Acinetobacter sp. ADP1 | Gammaproteobacteria-Acinetobacter | 3.60 | 3307 | 22(6) | 38(11) | 3 | 0 | moderate oligotrophs |
| Nitrosomonas europaea ATCC 19718 | Betaproteobacteria | 2.81 | 2461 | 30 (11) | 43 (15) | 4 | 0 | moderate oligotrophs |
| Ralstonia eutropha H16 | Betaproteobacteria | 4.05 | 3651 | 17 (4) | 65 (16) | 6 | 5 | moderate copiotrophs |
Abbreviations of transporters are: TBDT, TonB-dependent transporter; PTS, phosphotransferase system; TRAP, tripartite ATP-independent periplasmic protein.
*
The number of transporters per Mbp of each genome is shown in bracket(s).
†
The ABC transporters related multiple domains encode as one polypeptide.
‡
Information from reference [34].
N/A means no data.