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Table 2 Distribution of orphan enzyme activities in a few model organisms

From: ORENZA: a web resource for studying ORphan ENZyme activities

 

EC numbers

Model organisms

Total

Orphans (/total)

Species specific orphans (/total orphans)

Escherichia coli

1792

189 (0.11)

25 (0.13)

Arabidopsis thaliana

651

22 (0.03)

0 (0)

Saccharomyces cerevisiae

1254

129 (0.10)

14 (0.11)

Drosophila melanogaster

417

16 (0.04)

4 (0.25)

Homo sapiens

1560

225 (0.14)

6 (0.02)