Protein Clustering and Interactome Analysis in Parkinson and Alzheimer's Diseases

Archives of Iranian Medicine
Mostafa Rezaei-TaviraniSara Rahmatirad

Abstract

Alzheimer and Parkinson diseases (AD and PD) are the two most important neurodegenerative disorders. This paper aims to determine the possible molecular linkage between these two common neurodegenerative diseases by a combination of computational investigations. According to our aim, common sets of identified proteins from the KEGG database were further analyzed based on Gene Ontology (GO) annotation and sequence similarities by the agglomerative hierarchical clustering.  Proteins possessing same characteristics were categorized based on biological features in distinct clusters using the R programming software. In addition to this, by the use of DAVID Program and PPI network analysis, more insight can be achieved. The results of this study indicated that 23 proteins are common between these two diseases. Their ontology evaluations by application of clustering methods showed that proteins belonging to a specific cluster indicate discrete properties that are different from other clusters. Furthermore, PPI network analysis confirms that the proteins with similarity ontology and sequence are also in close relationship. In conclusion, assessment of protein features supported the idea that mitochondria are the main malfunction compar...Continue Reading

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