Table 2.
Comparative Analysis of Metal transporters from P.aeruginosa PA01, P.fluorescens Pf-5, P.putida KT2440 and P.syringae DC3000
| Metal Transporter Type/Family | Number of Transporters | |||
| P.aeruginosa PAO1 | P.fluorescens Pf5 | P.putida KT2440 | P.syringae Pv tomato DC 3000 | |
| I ATP Dependent | 17 (26.98%) | 18 (24. 32%) | 17 (24.28%) | 16 (29.62%) |
| The ATP-binding cassette (ABC) super family | 10 | 10 | 10 | 11 |
| The P-type ATPase (P-ATPase) super family | 7 | 8 | 7 | 5 |
| II. Ion Channels | 6 (9.52%) | 5 (6.66%) | 4 (5.71%) | 7(12.96%) |
| The CorA metal ion Transporter family (MIT family) | 3 | 3 | 3 | 4 |
| Small-conductance mechanosensitive ion channel (MSCS) family | 1 | 1 | - | 1 |
| The voltage-gated ion channel superfamily (VIC) | 2 | 1 | 1 | 2 |
| III Secondary Transporters | 36 (57.14%) | 47 (62.66%) | 45 (64.28%) | 28 (51.85%) |
| The Alanine/Glycine: Cation Symporter (AGCS) family | 3 | 1 | 1 | 1 |
| The Arsenite-Antimonite (ArsB) efflux family | 1 | 2 | 2 | 1 |
| The Bile acid: Na+ symporter (BASS) family | 3 | 2 | 2 | 1 |
| The Ca2+: Cation Antiporter (CaCA) family | - | 2 | 1 | 2 |
| The cation diffusion facilitator (CDF) family | 3 | 4 | 2 | 1 |
| The Chromate Ion Transporter (CHR) family | 1 | 1 | 1 | - |
| The Citrate Mg2+: H+ (CitM) Citrate-Ca2+: H+ (CitH) Symporter (CitMHS) family | - | 3 | 2 | 1 |
| The Monovalent cation: Proton Antiporter-1 (CPAI) family | 5 | 5 | 4 | 3 |
| The Monovalent cation: Proton Antiporter-2 (CPA2) family | 3 | 4 | 4 | 3 |
| The Monovalent cation: (K+or Na+) Proton Antiporter-3 (CPA3) family | 1 | 1 | 1 | 1 |
| The Dicarboxylate/AminoAcid: cation (Na+/H+) Symporter (DAACS) family | 1 | 3 | 2 | - |
| The Divalent Anion: Na+ symporter (DASS) family | 1 | 1 | 1 | - |
| The glutamate: Na+ symporter (ESS) family | 1 | 1 | 1 | |
| The K+ Uptake Permease (KUP) family | 1 | 1 | 1 | 1 |
| The Malonate: Na+symporter (MSS) family | 1 | 1 | - | - |
| The NhaA Na+:H+ Antiporter (NhaA) family | - | 1 | 2 | 2 |
| The NhaB Na+: H+ Antiporter (NhaB) family | 1 | 1 | 1 | - |
| The Ni2+-Co2+Transporter (NicoT) family | - | - | 1 | 1 |
| The Metal Ion (Mn2+- Fe2+) Transporter (Nramp) family | 2 | 1 | - | 3 |
| The Neurotransmitter sodium symporter (NSS) family | - | 1 | - | 1 |
| PNaS family: The Phosphate sodium symporter family | 2 | 2 | 1 | 1 |
| The Resistance-Nodulation Cell Division (RND) super family | 2 | 2 | 6 | - |
| The solute: sodium symporter (SSS) family | 2 | 4 | 5 | 3 |
| The K+ transporter (Trk) family | 1 | 1 | 2 | 1 |
| The Zinc (Zn2+)-Iron (Fe2+) Permease (ZIP) family | 1 | 2 | 2 | 1 |
| IV Unclassified | 4 (6.35%) | 5 (6.66%) | 4 (5.71%) | 3 (5.55%) |
| The Ferrous Iron uptake (FeoB) family | 1 | - | - | - |
| The Iron/Lead Transporter (ILT) super family | 1 | 2 | 1 | 2 |
| The Mg2+Transporter E (MgtE) family | 1 | 1 | 1 | 1 |
| The Mg2+Transporter C (MgtC) family | 1 | 2 | 2 | - |
| Total | 63 | 75 | 70 | 54 |