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Combinatorial Chemistry & High Throughput Screening


ISSN (Print): 1386-2073
ISSN (Online): 1875-5402

Research Article

Alz-Disc: A Tool to Discriminate Disease-causing and Neutral Mutations in Alzheimer's Disease

Author(s): A. Kulandaisamy, S. Akila Parvathy Dharshini and M. Michael Gromiha*

Volume 26, Issue 4, 2023

Published on: 05 August, 2022

Page: [769 - 777] Pages: 9

DOI: 10.2174/1386207325666220520102316

Price: $65


Background: Alzheimer's disease (AD) is the most common neurodegenerative disorder that affects the neuronal system and leads to memory loss. Many coding gene variants are associated with this disease and it is important to characterize their annotations.

Methods: We collected the Alzheimer's disease-causing and neutral mutations from different databases. For each mutation, we computed the different features from protein sequence. Further, these features were used to build a Bayes network-based machine-learning algorithm to discriminate between the disease-causing and neutral mutations in AD.

Results: We have constructed a comprehensive dataset of 314 Alzheimer's disease-causing and 370 neutral mutations and explored their characteristic features such as conservation scores, positionspecific scoring matrix (PSSM) profile, and the change in hydrophobicity, different amino acid residue substitution matrices and neighboring residue information for identifying the disease-causing mutations. Utilizing these features, we have developed a disease-specific tool named Alz-disc, for discriminating the disease-causing and neutral mutations using sequence information alone. The performance of the present method showed an accuracy of 89% for independent test set, which is 13% higher than available generic methods. This method is freely available as a web server at

Conclusions: This study is useful to annotate the effect of new variants and develop mutation specific drug design strategies for Alzheimer’s disease.

Keywords: Mutations, Alzheimer, neurodegenerative disorder, disease-causing, discrimination, web server.

Graphical Abstract
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