Characterization of a recombinant Newcastle disease virus vaccine strain. 2008

Sun-Hee Cho, and Hyuk-Joon Kwon, and Tae-Eun Kim, and Jae-Hong Kim, and Han-Sang Yoo, and Man-Hoon Park, and Young-Ho Park, and Sun-Joong Kim
Zoonotic Disease Institute, Seoul National University, San 56-1, Shillim-Dong, Gwanak-Gu, Seoul, Korea. kwonhj01@snu.ac.kr

A recombinant La Sota strain (KBNP-C4152R2L) in which fusion (F) and hemagglutinin-neuraminidase (HN) genes were replaced with those of a contemporary genotype VIId virus, KBNP-4152, has been developed. To attenuate the virulence of the recombinant strain, the F cleavage motif was mutated from (112)RRQKR(116) to (112)GRQAR(116), and to reduce pathogenic instability, a codon which does not allow changes to basic amino acids by single point mutation was inserted at codon 115. In addition a six-nucleotide sequence was inserted into the intergenic region between matrix protein and F genes for attenuation without breaking the "rule-of-six." The HN protein length was increased from 571 to 577 as a marker. Serological tests revealed that the antigenicity of KBNP-C4152R2L was similar to that of KBNP-4152 but distinct from that of the La Sota strain. KBNP-C4152R2L was avirulent (intracerebral pathogenicity index, 0.0; mean death time, >168 h) and stable in pathogenicity through in vivo passages. The killed oil emulsion of and live KBNP-C4152R2L were completely protective against mortality and egg drop caused by virulent strains, and KBNP-C4152R2L was applicable to in ovo vaccination. Therefore, KBNP-C4152R2L is a promising vaccine strain and viral vector in terms of antigenicity, productivity, safety, and pathogenic stability.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009521 Newcastle Disease An acute febrile, contagious, viral disease of birds caused by an AVULAVIRUS called NEWCASTLE DISEASE VIRUS. It is characterized by respiratory and nervous symptoms in fowl and is transmissible to man causing a severe, but transient conjunctivitis. Disease, Newcastle
D009522 Newcastle disease virus The most well known avian paramyxovirus in the genus AVULAVIRUS and the cause of a highly infectious pneumoencephalitis in fowl. It is also reported to cause CONJUNCTIVITIS in humans. Transmission is by droplet inhalation or ingestion of contaminated water or food. Avian Paramyxovirus 1,Paramyxovirus 1, Avian
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D012703 Serotyping Process of determining and distinguishing species of bacteria or viruses based on antigens they share. Serotypings
D014613 Vaccines, Attenuated Live vaccines prepared from microorganisms which have undergone physical adaptation (e.g., by radiation or temperature conditioning) or serial passage in laboratory animal hosts or infected tissue/cell cultures, in order to produce avirulent mutant strains capable of inducing protective immunity. Attenuated Vaccine,Vaccines, Live, Attenuated,Attenuated Vaccines,Vaccine, Attenuated
D014614 Vaccines, Synthetic Small synthetic peptides that mimic surface antigens of pathogens and are immunogenic, or vaccines manufactured with the aid of recombinant DNA techniques. The latter vaccines may also be whole viruses whose nucleic acids have been modified. Antigens, Synthetic,Chemical Vaccine,Chemical Vaccines,Immunogens, Synthetic,Molecular Vaccine,Molecular Vaccines,Recombinant Vaccine,Semisynthetic Vaccine,Semisynthetic Vaccines,Synthetic Antigen,Synthetic Vaccine,Synthetic Vaccines,Vaccines, Recombinant,Synthetic Antigens,Synthetic Immunogens,Vaccines, Chemical,Vaccines, Molecular,Vaccines, Semisynthetic,Antigen, Synthetic,Recombinant Vaccines,Vaccine, Chemical,Vaccine, Molecular,Vaccine, Recombinant,Vaccine, Semisynthetic,Vaccine, Synthetic
D014760 Viral Fusion Proteins Proteins, usually glycoproteins, found in the viral envelopes of a variety of viruses. They promote cell membrane fusion and thereby may function in the uptake of the virus by cells. Fusion Proteins, Viral,Viral Fusion Glycoproteins,F Protein (Sendai Virus),F Protein Measles Virus,F Protein Newcastle Disease Virus,F Protein SV,F-Glycoprotein SV,F1 Polypeptide (Paramyxovirus),Fusion Glycoprotein, Viral,Fusion VP1 Protein,Glycoprotein, Viral Fusion,Measles Fusion Protein,Mumps Virus Fusion Protein,Paramyxovirus Fusion Protein,Sendai Virus Fusion Protein,Viral Fusion-GP,Virus Fusion Proteins,Fusion Glycoproteins, Viral,Fusion Protein, Measles,Fusion Protein, Paramyxovirus,Fusion Proteins, Virus,Fusion-GP, Viral,Glycoproteins, Viral Fusion,Proteins, Virus Fusion,VP1 Protein, Fusion,Viral Fusion GP,Viral Fusion Glycoprotein

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