Table 2.

Number of phosphoproteins (distinct UniProtKB identifiers) for the top 15 annotated organisms

Organism	No of phospho-proteins
H. sapiens (human)	8738
A. thaliana (mouse-ear cress)	6423
Mus musculus (mouse)	3533
Saccharomyces cerevisiae (budding yeast)	2649
Oryza sativa subsp. japonica (rice)	2525
Schizosaccharomyces pombe (fission yeast)	969
Drosophila melanogaster (fruit fly)	750
O. satvia subsp. indica (rice)	639
Caenorhabditis elegans (worm)	583
Rattus norvegicus (rat)	555
Medicago truncatula (barrel medic)	111
Bos taurus (bovine)	87
Zea mays (maize)	86
Danio rerio (zebrafish)	86
Gallus gallus (chicken)	66