Perbandingan Sekuens Konsensus Gen Hemaglutinin Virus Avian Influenza Subtipe H5N1 Asal Unggas di Indonesia dengan Subtipe H5N2 dan H5N9

  • I Gusti Ngurah Kade Mahardika
  • I Nyoman Suartha
  • Ida Bagus Kade Suardana
  • I Gusti Ayu Yuniati Kencana
  • I Wayan Teguh Wibawan

Abstract

Consensus sequence of hemagglutinin (HA) gene of avian influenza viruses of H5N1 subtype isolatedfrom fowl in Indonesia – hereafter named as H5N1_Indonesia – is compared with that of H5N2 and H5N9viruses. Sequence information were downloaded from the public database GeneBank. The genetic distancesand nucleotide as well as its deduced amino-acid sequence alignment were analysed. At nucleotide level,genetic distances of HA between H5N1_Indonesia to H5N2 and H5N9 are 16.2% and 9.6%, respectively.At amino-acid level, the distances are 9.7% and 6.8%. The genetic distances of HA1 fragments are 19.0%(H5N1_Indonesia – H5N2) and 10.9% (H5N1_Indonesia – H5N9). At amino-acid, level the genetic distancesof HA1 are 13.1% (H5N1_Indonesia-H5N2) and 8.8% (H5N1_Indonesia – H5N9). All three subtypes havedifferent glycosilation motive and variation of amino-acid sequence of four antigenic sites. The consequenceof those facts is discussed.

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KADE MAHARDIKA, I Gusti Ngurah et al. Perbandingan Sekuens Konsensus Gen Hemaglutinin Virus Avian Influenza Subtipe H5N1 Asal Unggas di Indonesia dengan Subtipe H5N2 dan H5N9. Jurnal Veteriner, [S.l.], v. 10, n. 1, mar. 2009. ISSN 2477-5665. Available at: <http://ojs.unud.ac.id/index.php/jvet/article/view/3341>. Date accessed: 02 aug. 2025.
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Vol 10 No 1 (2009)
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