Table I
Arabidopsis K+ channels
| Name | AGI Genome Codes | GenBank Accession No. | Other Names | Predicted Topography | Motifs | Introns |
|---|---|---|---|---|---|---|
| AKT1 | At2g26650 | AAB95299 | – | 1P/6TM | CNB, AR | 10 |
| AKT2 | At4g22200 | AAA97865 | AKT3 | 1P/6TM | CNB, AR | 9 |
| AKT5 | At4g32500 | CAB79967 | – | 1P/6TM | CNB, AR | 11 |
| AKT6 | At2g25600 | AAD31377 | – | 1P/6TM | CNB, AR | (11) |
| KAT1 | At5g46240 | AAA32824 | – | 1P/6TM | CNB | 8 |
| KAT2 | At4g18290 | CAA16801 | – | 1P/6TM | CNB | (10) |
| KAT3 | At4g32650 | CAB05669 | AKT4, KC1 | 1P/6TM | CNB | 12 |
| SKOR | At3g02850 | CAA11280 | – | 1P/6TM | CNB, AR | 10 |
| GORK | At5g37500 | AAF26975 | – | 1P/6TM | CNB, AR | 11 |
| KCO1 | At5g55630 | BAB09230 | KCO | 2P/4TM | EF | 1 |
| KCO2 | At5g46370 | BAB11092 | KCO | 2P/4TM | EF | 1 |
| KCO3 | At5g46360 | BAB11091 | – | 1P/4TM (?) | EF | 1 |
| KCO4 | At1g02510 | AAG10638 | – | 2P/4TM | – | (1) |
| KCO5 | At4g01840 | CAB80677 | – | 2P/4TM | – | 1 |
| KCO6 | At4g18160 | CAB53657 | – | 2P/4TM | EF | (1) |
The superfamily of Arabidopsis K+ channels, their AGI genome codes and GenBank accession nos., other names found in GenBank, protein consensus motifs, and no. of introns (in parentheses if no full-length cDNA sequence is available). Sequences previously named AKT4 and AtKC1 in GenBank are here named to KAT3 due to the absence of an ankyrin repeat motif. Two sequences, both previously named KCO, here are named KCO1 and KCO2. AKT3 is a truncated but otherwise an identical version of AKT2 (Lacombe et al., 2000). Motif searches were performed with pfscan (http://www.isrec.isb-sib.ch/software/PFSCAN_form.html) against the PROSITE (Hofmann et al., 1999) and Pfam databases (Bateman et al., 2000). P, Pore loop; AR, ankyrin repeat; EF, EF-hand motif.