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Herpes virus proteins UL24 and UL76 This family consists of various herpes virus proteins; the gene 20 product, U49 protein, UL24 and UL76 proteins and BXRF1. The UL24 gene (product of the 24th ORF) is not essential for virus replication, and mutants with lesions in UL24 show a reduced ability to replicate in tissue culture and have reduced thymidine kinase activity, as the UL24 gene overlaps with thymidine kinase. The family of proteins is involved in viral production, latency, and reactivation. Protein UL76 presents as globular aggresomes in the nuclei of transiently transfected cells. Bioinformatic analyses predict that UL76 has a propensity for aggregation and targets cellular proteins implicated in protein folding and ubiquitin-proteasome systems. UL76 interacts with the VWA domain of S5a, the 26S proteasome non-ATPase regulatory subunit 4 (or PSMD4, or Rpn10), forming a complex in the late phase of infection. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",