Table 1

List of genomic properties that display power-law behavior and the associated exponent (b) for the best-fitting power-law function

Exponent b

Organism
 6-10-mers
 Protein families
 Protein super-families
 Protein folds
 Pseudomotifs
 Pseudogene families
 Functions per protein fold
 Interactions per protein fold
 Transcripts per protein family
Mycoplasma genitalium
 3.7
 1.7
 1.6
 1.9
 -
 -
 -
 -
 -
Mycoplasma pneumoniae
 3.5
 1.6
 1.5
 1.8
 -
 -
 -
 -
 -
Rickettsia prowazekii
 3.7
 1.7
 1.6
 1.9
 -
 -
 -
 -
 -
Chlamydia trachomatis
 3.7
 1.7
 1.6
 1.9
 -
 -
 -
 -
 -
Treponema pallidum
 3.4
 1.6
 1.5
 1.7
 -
 -
 -
 -
 -
Chlamydia pneumoniae
 3.6
 1.6
 1.5
 1.7
 -
 -
 -
 -
 -
Aquifex aeolicus
 3.8
 1.7
 1.5
 1.9
 -
 -
 -
 -
 -
Helicobacter pylori
 3.5
 1.6
 1.5
 1.7
 -
 -
 -
 -
 -
Haemophilus influenzae
 3.4
 1.5
 1.4
 1.6
 -
 -
 -
 -
 -
Methanococcus jannaschii
 3.5
 1.6
 1.5
 1.7
 -
 -
 -
 -
 -
Methanococcus thermoautotrophicum
 3.8
 2.0
 1.8
 2.2
 -
 -
 -
 -
 -
Pyrococcus horikoshii
 3.9
 1.9
 1.7
 2.0
 -
 -
 -
 -
 -
Archaeoglobus fulgidus
 3.8
 1.8
 1.6
 1.9
 -
 -
 -
 -
 -
Synechocystis sp.
 3.4
 1.6
 1.5
 1.7
 -
 -
 -
 -
 -
Mycobacterium tuberculosis
 3.4
 1.5
 1.4
 1.6
 -
 -
 -
 -
 -
Bacillus subtilis
 3.3
 1.4
 1.3
 1.5
 -
 -
 -
 -
 -
Escherichia coli
 3.2
 1.5
 1.4
 1.6
 -
 -
 -
 -
 -
Saccharomyces cerevisiae
 3.2
 1.4
 1.3
 1.5
 0.9
 1.5
 1.6
 2.2
 1.2
Caenorhabditis elegans
 3.1
 1.1
 1.0
 1.2
 1.0
 1.8
 -
 -
Drosophila melanogaster
 3.3
 1.2
 1.1
 1.3
 1.2
 -
 -
 -
Human chromosomes 21 and 22
 -
 -
 -
 -
 1.0
 1.9
 -
 -

Luscombe et al. Genome Biology 2002 3:research0040.1   doi:10.1186/gb-2002-3-8-research0040

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