Table I.
Representation of the kinase superfamily and the RLK/Pelle family in selected eukaryotic genomes
| Species | No. of Kinases (K)a | No. of RLK/Pelles (R)b
|
No. of Protein-Coding Genes (G)c | Percentage (K/G)d | Percentage (R/G)e | |
|---|---|---|---|---|---|---|
| RLK | RLCK | |||||
| Saccharomyces cerevisiae | 113 | 0 | 0 | 6,449 | 1.75 | 0 |
| Candida albicans | 95 | 0 | 0 | 6,146 | 1.55 | 0 |
| Drosophila melanogaster | 262 | 0 | 1 | 13,808 | 1.90 | 0.007 |
| Homo sapiens | 472 | 0 | 4 | 22,980 | 2.05 | 0.017 |
| Ostreococcus tauri | 93 | 0 | 0 | 8,166 | 1.14 | 0 |
| Chlamydomonas reinhardtii | 426 | 0 | 2 | 15,143 | 2.81 | 0.013 |
| Physcomitrella patens (moss) | 685 | 136 | 193 | 39,796 | 1.72 | 0.83 |
| Oryza sativa subsp. japonica (rice) | 1,446 | 786 | 284 | 42,653 | 3.39 | 2.48 |
| Populus trichocarpa (poplar) | 1,643 | 726 | 466 | 45,555 | 3.61 | 2.40 |
| Arabidopsis thaliana (Arabidopsis) | 998 | 443 | 167 | 26,751 | 3.73 | 2.28 |
a
Number of protein kinase domain-containing sequences (including RLK/Pelle family members).
b
Number of RLK/Pelle sequences.
c
Number of predicted protein-coding genes (S. cerevisiae, C. albicans, D. melanogaster, and H. sapiens [Shiu and Bleecker, 2003], O. tauri [Derelle et al., 2006], C. reinhardtii [Merchant et al., 2007], moss [Rensing et al., 2008], rice [Yuan et al., 2005], poplar [Tuskan et al., 2006], and Arabidopsis [TAIR version 6]).
d
Percentage of protein-coding genes that are protein kinases.
e
Percentage of protein-coding genes that are RLK/Pelle family members.