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Structure, Function and Dynamics in Adenovirus Maturation

The A, B, Cs of Herpesvirus Capsids

Department of Microbiology and Immunology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
Department of Microbiology and Immunology, Emory University School of Medicine, 1462 Clifton Road, Atlanta, GA 30322, USA
Department of Structural Biology, University of Pittsburgh School of Medicine, Biomedical Science Tower 3, 3501 5th Avenue, Pittsburgh, PA 15260, USA
Author to whom correspondence should be addressed.
Academic Editor: Eric R. May
Viruses 2015, 7(3), 899-914;
Received: 8 September 2014 / Revised: 9 February 2015 / Accepted: 17 February 2015 / Published: 26 February 2015
(This article belongs to the Special Issue Virus Maturation)
Assembly of herpesvirus nucleocapsids shares significant similarities with the assembly of tailed dsDNA bacteriophages; however, important differences exist. A unique feature of herpesviruses is the presence of different mature capsid forms in the host cell nucleus during infection. These capsid forms, referred to as A-, B-, and C-capsids, represent empty capsids, scaffold containing capsids and viral DNA containing capsids, respectively. The C-capsids are the closest in form to those encapsidated into mature virions and are considered precursors to infectious virus. The evidence supporting A- and B-capsids as either abortive forms or assembly intermediates has been lacking. Interaction of specific capsid forms with viral tegument proteins has been proposed to be a mechanism for quality control at the point of nuclear egress of mature particles. Here, we will review the available literature on these capsid forms and present data to debate whether A- and B-capsids play an important or an extraneous role in the herpesvirus life cycle. View Full-Text
Keywords: CMV; HSV; envelopment; nucleocapsid; trafficking; assembly CMV; HSV; envelopment; nucleocapsid; trafficking; assembly
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MDPI and ACS Style

Tandon, R.; Mocarski, E.S.; Conway, J.F. The A, B, Cs of Herpesvirus Capsids. Viruses 2015, 7, 899-914.

AMA Style

Tandon R, Mocarski ES, Conway JF. The A, B, Cs of Herpesvirus Capsids. Viruses. 2015; 7(3):899-914.

Chicago/Turabian Style

Tandon, Ritesh, Edward S. Mocarski, and James F. Conway. 2015. "The A, B, Cs of Herpesvirus Capsids" Viruses 7, no. 3: 899-914.

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