Title
A novel protein complex identification algorithm based on gene co-expression (PCIA-GeCo)
Abstract
Recent studies have shown that protein complex is composed of core and attachment proteins, and proteins inside the core are highly co-expressed. Based on this new concept, we reconstruct weighted PPI network by using gene expression data, and develop a novel protein complex identification algorithm from the angle of edge(PCIA-GeCo). First, we select the edge with high co-expressed coefficient as seed to form the preliminary cores. Then, the preliminary cores are filtered according to the weighted density of complex core to obtain the unique core. Finally, the protein complexes are generated by identifying attachment proteins for each core. A comprehensive comparison in term of F-measure, Coverage rate between our method and three other existing algorithms HUNTER, COACH and CORE has been made by comparing the predicted complexes against benchmark complexes. The evaluation results show our method PCIA-GeCo is effective; it can identify protein complexes more accurately.
Year
DOI
Venue
2013
10.1109/BIBM.2013.6732523
BIBM
Keywords
Field
DocType
protein-protein interaction network,biological network,gene co-express,core proteins,pcia-geco,weighted ppi network,genetics,proteins,edge angle,molecular biophysics,molecular configurations,protein complex identification algorithm based on gene co-expression,attachment proteins,macromolecules,protein complex,gene expression data,f-measure,bioinformatics,coverage rate
Gene,Computer science,Macromolecule,Algorithm,Gene expression,Molecular biophysics,Bioinformatics,Protein function prediction
Conference
Volume
Issue
ISSN
null
null
2156-1125
Citations 
PageRank 
References 
0
0.34
9
Authors
6
Name
Order
Citations
PageRank
Junmin Zhao173.97
Xiaohua Hu22819314.15
Tingting He334861.04
Peng Li411.06
Ming Zhang58918.62
Xianjun Shen62412.95