Journal
MICROBIOLOGY AND MOLECULAR BIOLOGY REVIEWS
Volume 72, Issue 2, Pages 249-265Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/MMBR.00040-07
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Funding
- NIAID NIH HHS [1R56-AI64703-01A2, R01 AI074984, R56 AI064703] Funding Source: Medline
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Human cytomegalovirus (HCW) is a common, medically relevant human herpesvirus. The tegument layer of herpesvirus virions lies between the genome-containing capsids and the viral envelope. Proteins within the tegument layer of herpesviruses are released into the cell upon entry when the viral envelope fuses with the cell membrane. These proteins are fully formed and active and control viral entry, gene expression, and immune evasion. Most tegument proteins accumulate to high levels during later stages of infection, when they direct the assembly and egress of progeny virions. Thus, viral tegument proteins play critical roles at the very earliest and very last steps of the HCW lytic replication cycle. This review summarizes HCMV tegument composition and structure as well as the known and speculated junctions of viral tegument proteins. Important directions for future investigation and the challenges that lie ahead are identified and discussed.
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