1. Equine herpesvirus type 1 ORF51 encoding UL11 as an essential gene for replication in cultured cells
- Author
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Emad Beshir, Hideto Fukushi, Ayaka Okada, Kenji Ohya, Yassien Badr, and Rania Yahya Abo-Sakaya
- Subjects
0301 basic medicine ,Chromosomes, Artificial, Bacterial ,040301 veterinary sciences ,viruses ,Mutant ,Gene Expression ,Golgi Apparatus ,Biology ,medicine.disease_cause ,Kidney ,Virus Replication ,Cell Line ,0403 veterinary science ,03 medical and health sciences ,Open Reading Frames ,Virology ,Gene expression ,medicine ,Animals ,Horses ,Cell Nucleus ,Viral Structural Proteins ,Bacterial artificial chromosome ,Mutation ,Base Sequence ,Virulence ,Epithelial Cells ,04 agricultural and veterinary sciences ,General Medicine ,Transfection ,030104 developmental biology ,Viral replication ,Cell culture ,Essential gene ,Rabbits ,Herpesvirus 1, Equid - Abstract
Equine herpesvirus type 1 (EHV-1) UL11 is a 74-amino-acid tegument protein encoded by ORF51 of the EHV-1 genome. EHV-1 UL11 was previously reported by other researchers using the RacL22 and RacH strains to be nonessential for viral replication in cultured cells. Here, we constructed UL11 mutant viruses including a UL11 null mutant and three C-terminal truncated mutants, for further characterization of EHV-1 UL11 using bacterial artificial chromosome (BAC) technology based on the neuropathogenic strain Ab4p. EHV-1 Ab4p UL11 was localized to juxtanuclear and Golgi regions as reported by other researchers. We found that no progeny viruses were produced by transfection of fetal equine kidney cells and rabbit kidney (RK-13) cells with the UL11 null mutant and truncation mutant BAC DNAs. However, mutant viruses were generated after transfection of RK13-UL11 cells constitutively expressing EHV-1 UL11 with the mutant BAC DNAs. In conclusion, UL11 of EHV-1 Ab4p is essential for replication in cultured cells.
- Published
- 2017