Differential and Selective Control of DNA Synthesis of Noninfected and Herpes Simplex Virus Infected Cells by Arabinofuranosyladenine

Author(s):  
Werner E. G. Müller ◽  
Rudolf K. Zahn
1989 ◽  
Vol 107 (3-4) ◽  
pp. 215-223 ◽  
Author(s):  
Matti Lehtinen ◽  
Pirkko Kulomaa ◽  
Olli-Pekka Kallioniemi ◽  
Jorma Paavonen ◽  
Pauli Leinikki

Virus Genes ◽  
1989 ◽  
Vol 2 (3) ◽  
pp. 269-281 ◽  
Author(s):  
Pei-Gi Lee ◽  
Jen-Yea Chang ◽  
Ming-Shyen Yen ◽  
Yung-Chi Cheng ◽  
Louise M. Nutter

Virology ◽  
1996 ◽  
Vol 217 (1) ◽  
pp. 407-412 ◽  
Author(s):  
JOHANNES BLÜMEL ◽  
BERTFRIED MATZ

1998 ◽  
Vol 72 (4) ◽  
pp. 2745-2751 ◽  
Author(s):  
Geoffrey A. Church ◽  
Anindya Dasgupta ◽  
Duncan W. Wilson

ABSTRACT Herpes simplex virus (HSV) type 1 DNA synthesis and packaging occur within the nuclei of infected cells; however, the extent to which the two processes are coupled remains unclear. Correct packaging is thought to be dependent upon DNA debranching or other repair processes, and such events commonly involve new DNA synthesis. Furthermore, the HSV UL15 gene product, essential for packaging, nevertheless localizes to sites of active DNA replication and may link the two events. It has previously been difficult to determine whether packaging requires concomitant DNA synthesis due to the complexity of these processes and of the viral life cycle; however, we have recently described a model system which simplifies the study of HSV assembly. Cells infected with HSV strain tsProt.A accumulate unpackaged capsids at the nonpermissive temperature of 39°C. Following release of the temperature block, these capsids proceed to package viral DNA in a single, synchronous wave. Here we report that, when DNA replication was inhibited prior to release of the temperature block, DNA packaging and later events in viral assembly nevertheless occurred at near-normal levels. We conclude that, under our conditions, HSV DNA packaging does not require detectable levels of DNA synthesis.


Author(s):  
Z. Hong Zhou ◽  
Jing He ◽  
Joanita Jakana ◽  
J. D. Tatman ◽  
Frazer J. Rixon ◽  
...  

Herpes simplex virus-1 (HSV-1) is a ubiquitous virus which is implicated in diseases ranging from self-curing cold sores to life-threatening infections. The 2500 Å diameter herpes virion is composed of a glycoprotein spike containing, lipid envelope, enclosing a protein layer (the tegument) in which is embedded the capsid (which contains the dsDNA genome). The B-, and A- and C-capsids, representing different morphogenetic stages in HSV-1 infected cells, are composed of 7, and 5 structural proteins respectively. The three capsid types are organized in similar T=16 icosahedral shells with 12 pentons, 150 hexons, and 320 connecting triplexes. Our previous 3D structure study at 26 Å revealed domain features of all these structural components and suggested probable locations for the outer shell proteins, VP5, VP26, VP19c and VP23. VP5 makes up most of both pentons and hexons. VP26 appeared to bind to the VP5 subunit in hexon but not to that in penton.


2009 ◽  
Vol 83 (9) ◽  
pp. 4376-4385 ◽  
Author(s):  
Haidong Gu ◽  
Bernard Roizman

ABSTRACT Among the early events in herpes simplex virus 1 replication are localization of ICP0 in ND10 bodies and accumulation of viral DNA-protein complexes in structures abutting ND10. ICP0 degrades components of ND10 and blocks silencing of viral DNA, achieving the latter by dislodging HDAC1 or -2 from the lysine-specific demethylase 1 (LSD1)/CoREST/REST repressor complex. The role of this process is apparent from the observation that a dominant-negative CoREST protein compensates for the absence of ICP0 in a cell-dependent fashion. HDAC1 or -2 and the CoREST/REST complex are independently translocated to the nucleus once viral DNA synthesis begins. The focus of this report is twofold. First, we report that in infected cells, LSD1, a key component of the repressor complex, is partially degraded or remains stably associated with CoREST and is ultimately also translocated, in part, to the cytoplasm. Second, we examined the distribution of the components of the repressor complex and ICP8 early in infection in wild-type-virus- and ICP0 mutant virus-infected cells. The repressor component and ultimately ICP8 localize in structures that abut the ND10 nuclear bodies. There is no evidence that the two compartments fuse. We propose that ICP0 must dynamically interact with both compartments in order to accomplish its functions of degrading PML and SP100 and suppressing silencing of viral DNA through its interactions with CoREST. In turn, the remodeling of the viral DNA-protein complex enables recruitment of ICP8 and initiation of formation of replication compartments.


1992 ◽  
Vol 267 (35) ◽  
pp. 25039-25043 ◽  
Author(s):  
J.F. van Iwaarden ◽  
J.A. van Strijp ◽  
H Visser ◽  
H.P. Haagsman ◽  
J Verhoef ◽  
...  

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