Table 1.
Number of proteins in different transporter classes and families, and their experimental (proteomic) identification in isolated mitochondria of Arabidopsis and rice and mitochondrial localization prediction status (using MU-LOC) in Arabidopsis, rice, human, and mouse.
| A. thaliana | O. sativa | H. sapiens | M. musculus | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TransportDB # | Experimental * | % | Predicted # | % | TransportDB # | Experimental * | % | Predicted # | % | TransportDB # | Predicted # | % | TransportDB # | Predicted # | % | |
| Whole proteome | 26,091 | - | - | - | - | 55,890 | - | - | - | - | 37,742 | - | - | 34,966 | - | - |
| ATP-dependent | ||||||||||||||||
| ABC transporters | 124 | 6 | 5 | 13 | 11 | 129 | 0 | 0 | 11 | 9 | 77 | 10 | 13 | 65 | 5 | 8 |
| F-ATPase | 44 | 16 | 36 | 17 | 39 | 50 | 7 | 14 | 13 | 26 | 60 | 25 | 42 | 58 | 19 | 33 |
| MPT family | 25 | 19 | 76 | 10 | 40 | 30 | 2 | 7 | 10 | 33 | 29 | 6 | 21 | 40 | 6 | 15 |
| P-type ATPases | 50 | 2 | 4 | 4 | 8 | 45 | 0 | 0 | 3 | 7 | 68 | 6 | 9 | 50 | 0 | 0 |
| Other ATP-dependent | 50 | 4 | 8 | 14 | 28 | 30 | 0 | 0 | 10 | 33 | 19 | 4 | 21 | 34 | 4 | 12 |
| Secondary transporters | ||||||||||||||||
| MC family | 60 | 58 | 97 | 30 | 50 | 61 | 50 | 82 | 33 | 54 | 63 | 25 | 40 | 64 | 21 | 33 |
| Other families | 722 | 13 | 2 | 34 | 5 | 799 | 0 | 0 | 50 | 6 | 511 | 39 | 8 | 473 | 28 | 6 |
| Ion channels | 151 | 11 | 7 | 15 | 10 | 137 | 0 | 0 | 10 | 7 | 588 | 9 | 2 | 470 | 8 | 2 |
| Unclassified | 53 | 0 | 0 | 6 | 11 | 4 | 0 | 0 | 0 | 0 | 52 | 5 | 10 | 36 | 2 | 6 |
| Total (Transporters) | 1279 | 129 | 10 | 143 | 11 | 1285 | 59 | 5 | 140 | 11 | 1467 | 129 | 9 | 1290 | 93 | 7 |
# See Table S1 for a full list of transporters from TransportDB (http://www.membranetransport.org/transportDB2/index.html) and their mitochondrial prediction status (using MU-LOC). * See Table S2 for a list of experimentally identified mitochondrial transporters.