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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 12 > R.N. Ramani Pushpa, J. John Kirubaharan and A. Koteeswaran

Phylogenetic Analysis of the Nucleoprotein Gene of Newcastle Disease Vaccine Viruses in India

R.N. Ramani Pushpa, J. John Kirubaharan and A. Koteeswaran
Newcastle disease, Avian paramyxovirus 1, Genome, Nucleoprotein gene, Immunodominant epitope
Abstract :

The Nucleoprotein (NP) gene of four different vaccine viruses of NDV commonly used in India namely D58, LaSota, F and K were characterized to find out variations if any. The NP gene was observed to have 1747 nucleotides with a coding sequence of 1470 nucleotides coding for 489 amino acids in all four vaccine viruses irrespective of their virulence to chickens. The variations at the coding sequence were restricted mostly to positions 401-489 and positions between 1 and 400, irrespective of pathogenicity to chickens remain conserved. The epitopes in nucleoprotein gene was also predicted. Among the 20 different epitopes predicted in the NP gene, one epitope with sequence 447FLDLMRA453 was found conserved in allvaccine viruses and was also found to be immunodominant.

Keywords :
Newcastle disease, Avian paramyxovirus 1, Genome, Nucleoprotein gene, Immunodominant epitope

Date Deposited : 07 Jul 2011 10:21

Last Modified : 07 Jul 2011 10:21

Official URL: http://

Volume 8, Number 12, - 2009 , ISSN 1682-8356

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