Biochemistry and computer-generated graph comparison of the structural and nonstructural proteins of Spanish-1918 Influenza, pandemic-2009, and bird flu viruses

  • Gusti Ngurah Mahardika Virology Laboratory, Faculty of Veterinary Medicine Udayana University, Denpasar, Bali, Indonesia https://orcid.org/0000-0001-5525-0793
  • Nyoman I. Suartha Animal Hospital, Faculty of Veterinary Medicine Udayana University, Denpasar, Bali, Indonesia
  • Gusti A. Y. Kencana Virology Laboratory, Faculty of Veterinary Medicine Udayana University, Denpasar, Bali, Indonesia
  • Ida B. K. Suardana Virology Laboratory, Faculty of Veterinary Medicine Udayana University, Denpasar, Bali, Indonesia
  • Wisnu W. Mahardika Faculty of Visual Communication Design of Bina Nusantara University, Tanggerang–Banten, Indonesia
  • Nyoman S. Budayanti Microbiology Department, Faculty of Medicine Udayana University, Denpasar, Bali, Indonesia

Abstract

A potential emergence of deadly pandemic influenza viruses is unpredictable and most of them have emerged with no forewarning. The distinct epidemiological and pathological patterns of the Spanish (H1N1), pandemic-2009 (H1N1), and avian influenza (H5N1), known as bird flu, viruses may allow us to develop a ‘template’ for possible emergence of devastating pandemic strains. Here, we provide a detailed molecular dissection of the structural and nonstructural proteins of this triad of viruses. GenBank data for three representative strains were analyzed to determine the polymorphic amino acids, genetic distances, isoelectric points, hydrophobicity plot, and protein modeling of various proteins. We propose that the most devastating pandemic strains may have untruncated PB1-F2 protein with unique residues, highly cleavable HA, and a basic NS1. Any newly emerging strain should be compared with these three strains, so that resources can be directed appropriately.

Published
2019-07-24
Section
Articles