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Remote Homology Detection Using Physicochemical Parameters and Physicochemical Properties

Authors: Mukti Routray; Swati Vipsita;

Remote Homology Detection Using Physicochemical Parameters and Physicochemical Properties

Abstract

Remote homology detection at amino acid level is a complex problem in bio-informatics. Similarity of sequences is very negligible and inconsequential when it is compared with their clan based resemblance. Thus customary detection methods may be replaced by modern Support Vector Machine (SVM) based approaches where a sequence is represented by significant feature vectors. This approach tends to give superior accuracy over the profile based approaches. In this work, effort has been made in two directions. In the first approach, 2-mers are generated from individual amino acid for protein sequences and various physicochemical parameters are used to generate the feature vector. In the second approach, the properties of amino acid are used to create the feature vectors using 3-mers in the similar manner. After the feature vectors were generated from two approaches, PCA (Principle Component analysis) was used for dimensionality reduction and SVM is used for classification. The accuracy of the proposed methods is compared to other existing methods.It was observed that the approach performed similar for some protein families and better for some other group of families. This work also proposes that the physicochemical parameters can be used to detect remote homology in protein sequences.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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