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. 2003 Jan 1;31(1):397–399. doi: 10.1093/nar/gkg001

Table 1. Nuclear proteins in six entirely sequenced proteomes.

Organism Nprota Nprot with NLSb
Arabidopsis thaliana (plant) 25 456 2390
Caenorhabditis elegans (worm) 18 898 1915
Drosophila melanogaster (fly) 14 184 1274
Mus musculus (mouse) 28 096 2538
Homo sapiens (human, partial) 31 073 4122
Saccharomyces cerevisiae (yeast) 6306 482
Sum 124 013 12 721

aNprot: number of proteins in proteome.

bNprot with NLS: number of proteins with NLS in the proteome.