Comparative genomics of metabolic networks of free-living and parasitic eukaryotes

BMC Genomics

Table 2 Basic graph properties

	Reference	Non-parasites	Parasites	Random
Nodes	876	483 ± 52	287 ± 67	333 ± 8.6
Edges	1184	539 ± 79	278 ± 80	279 ± 7.0
Density	0.0031	0.0046 ± 0.0003	0.0070 ± 0.001	0.0049 ± 0.0002
Avg. Connectivity	2.7	2.2 ± 0.1	1.9 ± 0.1	1.7 ± 0.0
Max. Connectivity	18	11.3 ± 1.5	8.3 ± 0.7	7.2 ± 1.5
Avg. Path length	4.7	2.9 ± 0.44	1.2 ± 0.89	0.12 ± 0.07
Max. Path length (diameter)	24	25.6 ± 1.1	22.7 ± 7.1	15.4 ± 3.9
Global clustering coefficient	0.079	0.059 ± 0.009	0.039 ± 0.014	0.015 ± 0.006
Isolated edges	17	50 ± 9	51 ± 4	74 ± 6

Basic graph parameters (± standard deviation) of the reconstructed core metabolic networks, the randomly shrunk networks, and the reference network of all core metabolic reactions. Network density is the proportion of observed to total possible links, connectivity is the number of links per node, path length refers to the shortest distance connecting two nodes, and the global clustering coefficient is the number of closed triplets (triangles) over the total number of triplets.

ISSN: 1471-2164