Deletion of the non-essential UL0 gene of infectious laryngotracheitis (ILT) virus leads to attenuation in chickens, and UL0 mutants expressing influenza virus haemagglutinin (H7) protect against ILT and fowl plague

Abstract excerpt

Infectious laryngotracheitis virus (ILTV), a member of the Alphaherpesvirinae, possesses several unique genes. One of them, UL0, encodes an abundantly expressed protein that accumulates in the nuclei of ILTV-infected cells. This study demonstrates that this protein is dispensable for in vitro virus replication and that UL0 deletion mutants exhibit only minor growth defects in cultured cells. The UL0 gene locus of...

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