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Table 2 A summary of numbers of nodes in EST-SAGE-derived PPI networks.

From: Topological and organizational properties of the products of house-keeping and tissue-specific genes in protein-protein interaction networks

Tissue

Total number of nodes

Number of house-keeping nodes

Number of tissue-specific nodes

Blood

3613

233 (0.062)

133 (0.037)

Blood vessel

1735

177 (0.102)

34 (0.020)

Bone marrow

2278

207 (0.091)

31 (0.014)

Brain

4624

238 (0.051)

368 (0.080)

Breast

3796

235 (0.062)

47 (0.012)

Colon

2057

186 (0.090)

54 (0.026)

Eye

4003

228 (0.057)

70 (0.017)

Heart

2035

188 (0.092)

33 (0.016)

Kidney

1388

167 (0.120)

17 (0.012)

Liver

1650

166 (0.101)

55 (0.033)

Lung

2624

198 (0.075)

30 (0.011)

Lymph node

438

98 (0.224)

15 (0.034)

Muscle

1974

192 (0.097)

65 (0.033)

Ovary

1316

164 (0.125)

10 (0.008)

Pancreas

2023

191 (0.094)

21 (0.010)

Placenta

3187

214 (0.067)

101 (0.032)

Prostate

3181

221 (0.069)

28 (0.009)

Skin

950

133 (0.140)

12 (0.013)

Stomach

2440

194 (0.080)

24 (0.010)

Thyroid gland

606

113 (0.186)

10 (0.017)

  1. The figures in parenthesis are the proportion of house-keeping nodes and proportion of tissue-specific nodes.