A Functional Network of Yeast Genes Using Gene Ontology Information

Author(s):  
Erliang Zeng ◽  
Giri Narasimhan ◽  
Lisa Schneper ◽  
Kalai Mathee
2014 ◽  
Vol 22 (03) ◽  
pp. 339-351 ◽  
Author(s):  
JIAWEI LUO ◽  
NAN ZHANG

Essential proteins are important for the survival and development of organisms. Lots of centrality algorithms based on network topology have been proposed to detect essential proteins and achieve good results. However, most of them only focus on the network topology, but ignore the false positive (FP) interactions in protein–protein interaction (PPI) network. In this paper, gene ontology (GO) information is proposed to measure the reliability of the edges in PPI network and we propose a novel algorithm for identifying essential proteins, named EGC algorithm. EGC algorithm integrates topology character of PPI network and GO information. To validate the performance of EGC algorithm, we use EGC and other nine methods (DC, BC, CC, SC, EC, LAC, NC, PEC and CoEWC) to identify the essential proteins in the two different yeast PPI networks: DIP and MIPS. The results show that EGC is better than the other nine methods, which means adding GO information can help in predicting essential proteins.


PLoS ONE ◽  
2008 ◽  
Vol 3 (12) ◽  
pp. e3860 ◽  
Author(s):  
Shireesh Srivastava ◽  
Linxia Zhang ◽  
Rong Jin ◽  
Christina Chan

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