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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Ternak dan Veteriner
Retno D Soejoedono
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Agriculture, Biological Sciences & Forestry Veterinary

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Molecular analysis of Hemagglutinin Gen of Highly Pathogenic Avian Influenza of H5N1 Subtype Isolated from Waterfowls Susanti, R; Soejoedono, Retno D; K Mahardika, I Gusti Ngurah; T Wibawan, I Wayan; Suhartono, Maggy T
Indonesian Journal of Animal and Veterinary Sciences Vol 13, No 3 (2008)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.147 KB) | DOI: 10.14334/jitv.v13i3.584

Abstract

Avian influenza viruses (AIV) subtype H5N1 isolated from waterfowls in West Java pose the known characteristic of highly pathogenic strains, with polybasic amino acid sequence of cleavage site QRERRRKKR and QRESRRKKR. This research aimed to analyze the important domains of hemagglutinin (HA) gene of those isolates. Fragment of HA gene was amplified using RT-PCR method with specifically-designed primer pairs and sequenced using dideoxy termination method with ABI automatic sequencer (Applied Biosystems). Multiple alignment of nucleotide and deduced amino acid sequences were analyzed using ClustalW of MEGA-3.1 program. Some of biological domains of HA, i.e. antigenic sites, receptor binding pocket, and glycosylation sites of the isolates were polymorphic. The viruses also pose conserved glutamine (Q) and glisin (G) residues at the known receptor binding site, at the position 222 and 224 respectively. This findings clearly show that all AIV subtype H5N1 isolaed from waterfowl preservesthe α-2,3NeuAcGal avian receptor specificity. Key Words: Antigenic Sites, Glycosylation Sites, Receptor Binding Pocket, AIV H5N1, Waterfowls
PRODUKSI ANTIBODI KUNING TELUR (IgY) ANTI STREPTOCOCCUS MUTANS SEBAGAI ANTI KARIES GIGI Okti Nadia Poetri; Retno D Soejoedono
Jurnal Ilmu Pertanian Indonesia Vol. 11 No. 3 (2006): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.712 KB)

Abstract

The aim of this study was to explore IgY anti Streptococcus mutan production and the ability of Igy Streptococcus mutans blocking adhesion process. The eggs was collected from Single Comb Brown Leghorn which have been immunized by S. mutan. Agar gel precipitation test was done to detect IgY anti S. mutans in serum and egg. Egg which Countain IgY anti S. mutans was collected. IgY anti S. mutans extracted from egg yolk by mean s PEG-Amonium sulfat and purified using fast protein liquid chromatography. The purity of Igy anti S. mutans was determined by UV spectropometer. Biological activities of Igy anti S. mutans to inhibit adhession process was learned by anti adhesion test. We use two dose of IgY, which is 100 ug and 500 ug. Igy anti S.  mutans formen in serum  five weeks after the first immunization while it formed in egg nine weeks after the first immunization. Igy anti S. mutanss still present in serum andegg until twelve weeks from the first immunization. Igy anti S. mutanss  could decrease the amount of bacteria which attach the epithelial cell surface. The amount of sticky bacteria on epithelial cell (without IgY) are 40 cell bacteria/epithelial cell. After blocked by IgY anti S. mutanss  the amount of bacteria turn into 30 cell bacteria/epithelial cell (for dose of 100 ug IgY) and 28 cell bacteria/epitheelial cell (for dose of 500 ug IgY). This research concluded that hens were capable producing IgY anti S. mutanss in egg yolk and it can be used to solve dental caries problem which caused by S. mutanss.
Molecular analysis of Hemagglutinin Gen of Highly Pathogenic Avian Influenza of H5N1 Subtype Isolated from Waterfowls R Susanti; Retno D Soejoedono; I Gusti Ngurah K Mahardika; I Wayan T Wibawan; Maggy T Suhartono
Jurnal Ilmu Ternak dan Veteriner Vol 13, No 3 (2008): SEPTEMBER 2008
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.147 KB) | DOI: 10.14334/jitv.v13i3.584

Abstract

Avian influenza viruses (AIV) subtype H5N1 isolated from waterfowls in West Java pose the known characteristic of highly pathogenic strains, with polybasic amino acid sequence of cleavage site QRERRRKKR and QRESRRKKR. This research aimed to analyze the important domains of hemagglutinin (HA) gene of those isolates. Fragment of HA gene was amplified using RT-PCR method with specifically-designed primer pairs and sequenced using dideoxy termination method with ABI automatic sequencer (Applied Biosystems). Multiple alignment of nucleotide and deduced amino acid sequences were analyzed using ClustalW of MEGA-3.1 program. Some of biological domains of HA, i.e. antigenic sites, receptor binding pocket, and glycosylation sites of the isolates were polymorphic. The viruses also pose conserved glutamine (Q) and glisin (G) residues at the known receptor binding site, at the position 222 and 224 respectively. This findings clearly show that all AIV subtype H5N1 isolaed from waterfowl preservesthe α-2,3NeuAcGal avian receptor specificity. Key Words: Antigenic Sites, Glycosylation Sites, Receptor Binding Pocket, AIV H5N1, Waterfowls
Co-Authors I Gusti Ngurah K Mahardika I Wayan T Wibawan Maggy T Suhartono Maggy T Suhartono Martien Herna Susanti Okti Nadia Poetri R Susanti