ORF47 protein is a tegument protein which possesses a kinase activity (J Gen Virol 1994. 75 (Pt 2): 317-326, Virology 1992. 191: 9-18) and is a homolog of herpes simplex type 1 (HSV-1) UL13, human cytomegalovirus (hCMV) UL97 and Epstein Barr virus (EBV) BFLF4 protein kinases (J Virol 1989. 63: 450-455).
The ORF3 encodes a predicted 179 amino acid protein with a potential role in gene expression. Several studies showed ORF3 protein as dispensable for viral replication and establishment of latency.
The ORF53, which is predicted to be a tegument protein, consists of 331 amino acids and plays a critical role in cytoplasmic virus egress. ORF53 participates in the final step of tegumentation and envelope acquisition within the host cytoplasm.