Genetic Analysis of the Complete S1 Gene in Japanese Infectious Bronchitis Virus Strains.
Viruses
; 14(4)2022 03 29.
Article
in English
| MEDLINE | ID: covidwho-1810312
ABSTRACT
The complete nucleotide sequence of the S1 glycoprotein gene of the Japanese infectious bronchitis virus (IBV) strains was determined and genetically analyzed. A total of 61 Japanese IBV strains were classified into seven genotypes, namely GI-1, 3, 7, 13, 18, 19, and GVI-1 using the classification scheme that was proposed by Valastro et al, with three exceptions. These genotypes practically corresponded to those defined in Japan, namely Mass, Gray, JP-II, 4/91, JP-I, JP-III, and JP-IV, which have been identified through their partial nucleotide sequences containing hypervariable regions 1 and 2. In addition, three exceptive strains were considered to be derived from recombination within the S1 gene of IBV strains G1-13 and GI-19. By analyzing the amino acid polymorphism of the S1 glycoprotein among Japanese genotypes, a diversity was observed based on the genotype-specific amino acid residue, the proteolytic cleavage motif at the S1/S2 cleavage site, and the position of the potential N-glycosylation sites.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Poultry Diseases
/
Coronavirus Infections
/
Infectious bronchitis virus
Type of study:
Randomized controlled trials
Limits:
Animals
Country/Region as subject:
Asia
Language:
English
Year:
2022
Document Type:
Article
Affiliation country:
V14040716
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