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.
The ORF50 gene of the varicella-zoster virus (VZV) encodes glycoprotein M which is conserved among all herpesviruses. VZV gM is predicted to be an eight-transmembrane envelope glycoprotein modified with a complex N-linked oligosaccharide.
Immediate-early 62 protein (IE62) is a homolog of herpes simplex type 1 (HSV-1) ICP4. These two proteins have conserved DNA bidnding domain,while not activation domain (J Virol 1993. 67: 4246-4251).