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Network Biology, 2024, 14(2): 156-173
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Article

Centrality based analysis of amino acids network

Chandra Borah1, Tazid Ali2
1Department of Mathematics, Maryam Ajmal Women's College of Science and Technology, Hojai, Assam 782435, India
2Department of Mathematics, Dibrugarh University, Assam 786004, India

Received 29 September 2023;Accepted 20 October 2023;Published online 1 November 2023;Published 1 June 2024
IAEES

Abstract
A network is a crucial asset in biology for capturing and exploring interaction data in biological systems of many types, such as protein-protein communications, amino acid associations, gene regulation, and cellular metabolism. In this article, we constructed an amino acid distance matrix by considering each base's positional relevance in a codon, chemical types: Purine and Pyrimidine, and H-bonding count. Based on the amino acid distance matrix, we eventually generated a twenty amino acid network having evolutionary significance. We reviewed multiple centrality metrics to assess the relative importance of amino acids in the proposed network: Degree Centrality, Closeness Centrality, Betweenness Centrality, Eigenvector Centrality, Eccentricity Centrality, and Radiality Centrality. We also looked at the correlation coefficients between the different centrality measures to figure out whether the network is assortative or disassortative. Furthermore, we examined the Clustering Coefficient and Degree Distribution as two effective network measures, and the results seem noteworthy.

Keywords amino acid;genetic code;codon redundancy;centrality measure;correlation;clustering coefficient.


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