JVI Figure table search 04
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bell, P.
Right arrow Articles by Maul, G. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bell, P.
Right arrow Articles by Maul, G. G.

 Previous Article  |  Next Article 

Journal of Virology, June 2000, p. 5329-5336, Vol. 74, No. 11
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

Hepatitis Delta Virus Replication Generates Complexes of Large Hepatitis Delta Antigen and Antigenomic RNA That Affiliate with and Alter Nuclear Domain 10

Peter Bell,1 Robert Brazas,2 Donald Ganem,2 and Gerd G. Maul1,*

The Wistar Institute, Philadelphia, Pennsylvania 19104,1 and Howard Hughes Medical Institute and Departments of Microbiology and Medicine, University of California, San Francisco, California 941432

Received 2 December 1999/Accepted 22 February 2000

Hepatitis delta virus (HDV), a single-stranded RNA virus, bears a single coding region whose product, the hepatitis delta antigen (HDAg), is expressed in two isoforms, small (S-HDAg) and large (L-HDAg). S-HDAg is required for replication of HDV, while L-HDAg inhibits viral replication and is required for the envelopment of the HDV genomic RNA by hepatitis B virus proteins. Here we have examined the spatial distribution of HDV RNA and proteins in infected nuclei, with particular reference to specific nuclear domains. We found that L-HDAg was aggregated in specific nuclear domains and that over half of these domains were localized beside nuclear domain 10 (ND10). At later times, ND10-associated proteins like PML were found in larger HDAg complexes that had developed into apparently hollow spheres. In these larger complexes, PML was found chiefly in the rims of the spheres, while the known ND10 components Sp100, Daxx, and NDP55 were found in the centers of the spheres. Thus, ND10 proteins that normally are closely linked separate within HDAg-associated complexes. Viral RNA of antigenomic polarity, whether expressed from genomic RNA or directly from introduced plasmids, colocalizes with L-HDAg and the transcriptional repressor PML. In contrast, HDV genomic RNA was distributed more uniformly throughout the nucleus. These results suggest that different host protein complexes may assemble on viral RNA strands of different polarities, and they also suggest that this RNA virus, like DNA viruses, can alter the distribution of ND10-associated proteins. The fact that viral components specifically linked to repression of replication can associate with one of the ND10-associated proteins (PML) raises the possibility that this host protein may play a role in the regulation of HDV RNA synthesis.

* Corresponding author. Mailing address: The Wistar Institute, 3601 Spruce St., Philadelphia, PA 19104. Phone: (215) 898-3817. Fax: (215) 898-3868. E-mail: maul{at}wistar.upenn.edu.

Journal of Virology, June 2000, p. 5329-5336, Vol. 74, No. 11
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Mol. Cell. Biol. Microbiol. Mol. Biol. Rev.
Clin. Vaccine Immunol. ALL ASM JOURNALS

Copyright © 2000 by the American Society for Microbiology. All rights reserved.