Ontology highlight
ABSTRACT:
SUBMITTER: Kusters JG
PROVIDER: S-EPMC7131080 | biostudies-literature | 1989 Mar
REPOSITORIES: biostudies-literature
Virology 19890301 1
The sequences of the peplomeric S1 protein of four serologically distinct strains of the infectious bronchitis virus (IBV), an avian coronavirus, have been determined. The S1 protein is thought to contain the serotype-specific neutralization epitopes and to be the main target of antigenic variation. An alignment with sequences of three strains published previously showed that from the 545 amino acid residues only 243 have been conserved. Clustering of substitutions suggests that most serotype de ...[more]