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Investigating the Influence of ANTXR2 Gene Mutations on Protective Antigen Binding for Heightened Anthrax Resistance

Archana, Chamalapura Ashwathama, Sekar, Yamini Sri, Suresh, Kuralayanapalya Puttahonnappa, Subramaniam, Saravanan, Sagar, Ningegowda, Rani, Swati, Anandakumar, Jayashree, Pandey, Rajan Kumar, Barman, Nagendra Nath, Patil, Sharanagouda S.·2024·Genes
DOI 10.3390/genes15040426PMC PMC11049084
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Abstract

Bacillus anthracis is the bacterium responsible for causing the zoonotic disease called anthrax. The disease presents itself in different forms like gastrointestinal, inhalation, and cutaneous. Bacterial spores are tremendously adaptable, can persist for extended periods and occasionally endanger human health. The Anthrax Toxin Receptor-2 (ANTXR2) gene acts as membrane receptor and facilitates the entry of the anthrax toxin into host cells. Additionally, mutations in the ANTXR2 gene have been linked to various autoimmune diseases, including Hyaline Fibromatosis Syndrome (HFS), Ankylosing Spondylitis (AS), Juvenile Hyaline Fibromatosis (JHF), and Infantile Systemic Hyalinosis (ISH). This study delves into the genetic landscape of ANTXR2, aiming to comprehend its associations with diverse disorders, elucidate the impacts of its mutations, and pinpoint minimal non-pathogenic mutations capable of reducing the binding affinity of the ANTXR2 gene with the protective antigen. Recognizing the pivotal role of single-nucleotide polymorphisms (SNPs) in shaping genetic diversity, we conducted computational analyses to discern highly deleterious and tolerated non-synonymous SNPs (nsSNPs) in the ANTXR2 gene. The Mutpred2 server determined that the Arg465Trp alteration in the ANTXR2 gene leads to altered DNA binding (p = 0.22) with a probability of a deleterious mutation of 0.808; notably, among the identified deleterious SNPs, rs368288611 (Arg465Trp) stands out due to its significant impact on altering the DNA-binding ability of ANTXR2. We propose these SNPs as potential candidates for hypertension linked to the ANTXR2 gene, which is implicated in blood pressure regulation. Noteworthy among the tolerated substitutions is rs200536829 (Ala33Ser), recognized as less pathogenic; this highlights its potential as a valuable biomarker, potentially reducing side effects on the host while also reducing binding with the protective antigen protein. Investigating these SNPs holds the potential to correlate with several autoimmune disorders and mitigate the impact of anthrax disease in humans.

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Metadata

Authors
Archana, C. A., Sekar, Y. S., Suresh, K. P., Subramaniam, S., Sagar, N., Rani, S., Anandakumar, J., Pandey, R. K., Barman, N. N., & Patil, S. S.
Affiliations
  • ICAR-National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru 560064, India
  • ICAR-National Institute on Foot and Mouth Disease, Bhubaneswar 752050, India
  • Department of Medical Biochemistry and Biophysics, Karolinska Institute, 17177 Solna, Sweden
  • College of Veterinary Science, Assam Agricultural University (AAU), Guwahati 781022, India
ORCID
Venue
Genes
Publisher
MDPI AG
Published
2024-03-28
Volume
15
Issue
4
Pages
426
ISSN
2073-4425
DOI
10.3390/genes15040426
PMC
PMC11049084
Cited by
5
References
1
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (vor)
Funders
Penn State University (47013240002)

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