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Table 2 Summary of the disconnectivity key node analysis.

From: Integration of gene expression data with prior knowledge for network analysis and validation

Network

Method

1st Key node

2nd Key node

3rd Key node

4th Key node

5th Key node

Signaling Network

strict

MEK1 (0.21)

SHP-2 (0.20)

Abl (0.18)

ERK1 (0.14)

MEKK1 (0.13)

 

1-ext.

p53 (0.16)

SHIP (0.06)

PIAS1 (0.06)

Fyn (0.06)

PAK2 (0.04)

Metabolic Network

strict

Nucleoside-diphosphate kinase (0.39)

Hexokinase (0.32)

Phosphatidate phosphatase (0.26)

Glucosyl-ceramidase (0.25)

Glucosyl-ceramide synthase (0.24)

 

1-ext.

Lipoprotein lipase (0.22)

Nucleoside-diphosphate kinase (0.14)

Succinate-CoA ligase (GDP-forming) (0.14)

5'-nucleotidase (0.12)

Hexokinase (0.11)

  1. The five Dis-top-ranked vertices are shown for each filtered network. Most prominent vertices in the signaling networks are related to the "EGF network". The proteins hexokinase, lipoprotein lipase and further high-ranking nodes of breast cancer metabolism indicate that energy supply and conversion play the major role.