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 Yasuda, J.
Right arrow Articles by Hunter, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yasuda, J.
Right arrow Articles by Hunter, E.

 Previous Article  |  Next Article 

J Virol, May 1998, p. 4095-4103, Vol. 72, No. 5
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

A Proline-Rich Motif (PPPY) in the Gag Polyprotein of Mason-Pfizer Monkey Virus Plays a Maturation-Independent Role in Virion Release

Jiro Yasudadagger and Eric Hunter*

Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294

Received 3 November 1997/Accepted 10 February 1998

Virus assembly represents one of the last steps in the retrovirus life cycle. During this process, Gag polyproteins assemble at specific sites within the cell to form viral capsids and induce membrane extrusion (viral budding) either as assembly progresses (type C virus) or following formation of a complete capsid (type B and type D viruses). Finally, the membrane must undergo a fusion event to pinch off the particle in order to release a complete enveloped virion. Structural elements within the MA region of the Gag polyprotein define the route taken to the plasma membrane and direct the process of virus budding. Results presented here suggest that a distinct region of Gag is necessary for virus release. The pp24 and pp16 proteins of the type D retrovirus Mason-Pfizer monkey virus (M-PMV) are phosphoproteins that are encoded in the gag gene of the virus. The pp16 protein is a C-terminally located cleavage product of pp24 and contains a proline-rich motif (PPPY) that is conserved among the Gag proteins of a wide variety of retroviruses. By performing a functional analysis of this coding region with deletion mutants, we have shown that the pp16 protein is dispensable for capsid assembly but essential for virion release. Moreover, additional experiments indicated that the virus release function of pp16 was abolished by the deletion of only the PPPY motif and could be restored when this motif alone was reinserted into a Gag polyprotein lacking the entire pp16 domain. Single-amino-acid substitutions for any of the residues within this motif confer a similar virion release-defective phenotype. It is unlikely that the function of the proline-rich motif is simply to inhibit premature activation of protease, since the PPPY deletion blocked virion release in the context of a protease-defective provirus. These results demonstrate that in type D retroviruses a PPPY motif plays a key role in a late stage of virus budding that is independent of and occurs prior to virion maturation.


* Corresponding author. Mailing address: Department of Microbiology, University of Alabama at Birmingham, 256 Bevill Biomedical Research Building, 845 19th St. South, Birmingham, AL 35294-2170. Phone: (205) 934-2437. Fax: (205) 934-1640. E-mail: ehunter{at}uab.edu.

dagger Present address: Laboratory Animal Research Center, Institute of Medical Science, University of Tokyo, Tokyo 108, Japan.


J Virol, May 1998, p. 4095-4103, Vol. 72, No. 5
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.



This article has been cited by other articles:

  • Tandon, R., AuCoin, D. P., Mocarski, E. S. (2009). Human Cytomegalovirus Exploits ESCRT Machinery in the Process of Virion Maturation. J. Virol. 83: 10797-10807 [Abstract] [Full Text]  
  • Sabo, Y., Laham-Karam, N., Bacharach, E. (2008). Basal Budding and Replication of the Murine Leukemia Virus Are Independent of the Gag L Domains. J. Virol. 82: 9770-9775 [Abstract] [Full Text]  
  • Ushijima, Y., Koshizuka, T., Goshima, F., Kimura, H., Nishiyama, Y. (2008). Herpes Simplex Virus Type 2 UL56 Interacts with the Ubiquitin Ligase Nedd4 and Increases Its Ubiquitination. J. Virol. 82: 5220-5233 [Abstract] [Full Text]  
  • Usami, Y., Popov, S., Popova, E., Gottlinger, H. G. (2008). Efficient and Specific Rescue of Human Immunodeficiency Virus Type 1 Budding Defects by a Nedd4-Like Ubiquitin Ligase. J. Virol. 82: 4898-4907 [Abstract] [Full Text]  
  • Chung, H.-Y., Morita, E., von Schwedler, U., Muller, B., Krausslich, H.-G., Sundquist, W. I. (2008). NEDD4L Overexpression Rescues the Release and Infectivity of Human Immunodeficiency Virus Type 1 Constructs Lacking PTAP and YPXL Late Domains. J. Virol. 82: 4884-4897 [Abstract] [Full Text]  
  • Luttge, B. G., Shehu-Xhilaga, M., Demirov, D. G., Adamson, C. S., Soheilian, F., Nagashima, K., Stephen, A. G., Fisher, R. J., Freed, E. O. (2008). Molecular Characterization of Feline Immunodeficiency Virus Budding. J. Virol. 82: 2106-2119 [Abstract] [Full Text]  
  • Popov, S., Popova, E., Inoue, M., Gottlinger, H. G. (2008). Human Immunodeficiency Virus Type 1 Gag Engages the Bro1 Domain of ALIX/AIP1 through the Nucleocapsid. J. Virol. 82: 1389-1398 [Abstract] [Full Text]  
  • Heidecker, G., Lloyd, P. A., Soheilian, F., Nagashima, K., Derse, D. (2007). The Role of WWP1-Gag Interaction and Gag Ubiquitination in Assembly and Release of Human T-Cell Leukemia Virus Type 1. J. Virol. 81: 9769-9777 [Abstract] [Full Text]  
  • Stansell, E., Apkarian, R., Haubova, S., Diehl, W. E., Tytler, E. M., Hunter, E. (2007). Basic Residues in the Mason-Pfizer Monkey Virus Gag Matrix Domain Regulate Intracellular Trafficking and Capsid-Membrane Interactions. J. Virol. 81: 8977-8988 [Abstract] [Full Text]  
  • Watanabe, T., Sorensen, E. M., Naito, A., Schott, M., Kim, S., Ahlquist, P. (2007). Involvement of host cellular multivesicular body functions in hepatitis B virus budding. Proc. Natl. Acad. Sci. USA 104: 10205-10210 [Abstract] [Full Text]  
  • Urata, S., Noda, T., Kawaoka, Y., Morikawa, S., Yokosawa, H., Yasuda, J. (2007). Interaction of Tsg101 with Marburg Virus VP40 Depends on the PPPY Motif, but Not the PT/SAP Motif as in the Case of Ebola Virus, and Tsg101 Plays a Critical Role in the Budding of Marburg Virus-Like Particles Induced by VP40, NP, and GP. J. Virol. 81: 4895-4899 [Abstract] [Full Text]  
  • Murcia, P. R., Arnaud, F., Palmarini, M. (2007). The Transdominant Endogenous Retrovirus enJS56A1 Associates with and Blocks Intracellular Trafficking of Jaagsiekte Sheep Retrovirus Gag. J. Virol. 81: 1762-1772 [Abstract] [Full Text]  
  • Urata, S., Noda, T., Kawaoka, Y., Yokosawa, H., Yasuda, J. (2006). Cellular factors required for lassa virus budding.. J. Virol. 80: 4191-4195 [Abstract] [Full Text]  
  • Auerbach, M. R., Brown, K. R., Kaplan, A., de Las Nueces, D., Singh, I. R. (2006). A Small Loop in the Capsid Protein of Moloney Murine Leukemia Virus Controls Assembly of Spherical Cores. J. Virol. 80: 2884-2893 [Abstract] [Full Text]  
  • Paul, T. A., Quackenbush, S. L., Sutton, C., Casey, R. N., Bowser, P. R., Casey, J. W. (2006). Identification and Characterization of an Exogenous Retrovirus from Atlantic Salmon Swim Bladder Sarcomas. J. Virol. 80: 2941-2948 [Abstract] [Full Text]  
  • Song, C., Micoli, K., Bauerova, H., Pichova, I., Hunter, E. (2005). Amino Acid Residues in the Cytoplasmic Domain of the Mason-Pfizer Monkey Virus Glycoprotein Critical for Its Incorporation into Virions. J. Virol. 79: 11559-11568 [Abstract] [Full Text]  
  • Neumann, G., Ebihara, H., Takada, A., Noda, T., Kobasa, D., Jasenosky, L. D., Watanabe, S., Kim, J. H., Feldmann, H., Kawaoka, Y. (2005). Ebola Virus VP40 Late Domains Are Not Essential for Viral Replication in Cell Culture. J. Virol. 79: 10300-10307 [Abstract] [Full Text]  
  • Ott, D. E., Coren, L. V., Gagliardi, T. D., Nagashima, K. (2005). Heterologous Late-Domain Sequences Have Various Abilities To Promote Budding of Human Immunodeficiency Virus Type 1. J. Virol. 79: 9038-9045 [Abstract] [Full Text]  
  • Patton, G. S., Morris, S. A., Chung, W., Bieniasz, P. D., McClure, M. O. (2005). Identification of Domains in Gag Important for Prototypic Foamy Virus Egress. J. Virol. 79: 6392-6399 [Abstract] [Full Text]  
  • Stange, A., Mannigel, I., Peters, K., Heinkelein, M., Stanke, N., Cartellieri, M., Gottlinger, H., Rethwilm, A., Zentgraf, H., Lindemann, D. (2005). Characterization of Prototype Foamy Virus Gag Late Assembly Domain Motifs and Their Role in Particle Egress and Infectivity. J. Virol. 79: 5466-5476 [Abstract] [Full Text]  
  • Mura, M., Murcia, P., Caporale, M., Spencer, T. E., Nagashima, K., Rein, A., Palmarini, M. (2004). Late viral interference induced by transdominant Gag of an endogenous retrovirus. Proc. Natl. Acad. Sci. USA 101: 11117-11122 [Abstract] [Full Text]  
  • Heidecker, G., Lloyd, P. A., Fox, K., Nagashima, K., Derse, D. (2004). Late Assembly Motifs of Human T-Cell Leukemia Virus Type 1 and Their Relative Roles in Particle Release. J. Virol. 78: 6636-6648 [Abstract] [Full Text]  
  • Martin-Serrano, J., Perez-Caballero, D., Bieniasz, P. D. (2004). Context-Dependent Effects of L Domains and Ubiquitination on Viral Budding. J. Virol. 78: 5554-5563 [Abstract] [Full Text]  
  • Blot, V., Perugi, F., Gay, B., Prevost, M.-C., Briant, L., Tangy, F., Abriel, H., Staub, O., Dokhelar, M.-C., Pique, C. (2004). Nedd4.1-mediated ubiquitination and subsequent recruitment of Tsg101 ensure HTLV-1 Gag trafficking towards the multivesicular body pathway prior to virus budding. J. Cell Sci. 117: 2357-2367 [Abstract] [Full Text]  
  • Wang, H., Machesky, N. J., Mansky, L. M. (2004). Both the PPPY and PTAP Motifs Are Involved in Human T-Cell Leukemia Virus Type 1 Particle Release. J. Virol. 78: 1503-1512 [Abstract] [Full Text]  
  • Guo, X., Hu, J., Whitney, J. B., Russell, R. S., Liang, C. (2004). Important Role for the CA-NC Spacer Region in the Assembly of Bovine Immunodeficiency Virus Gag Protein. J. Virol. 78: 551-560 [Abstract] [Full Text]  
  • Shehu-Xhilaga, M., Ablan, S., Demirov, D. G., Chen, C., Montelaro, R. C., Freed, E. O. (2004). Late Domain-Dependent Inhibition of Equine Infectious Anemia Virus Budding. J. Virol. 78: 724-732 [Abstract] [Full Text]  
  • Chen, C., Weisz, O. A., Stolz, D. B., Watkins, S. C., Montelaro, R. C. (2004). Differential Effects of Actin Cytoskeleton Dynamics on Equine Infectious Anemia Virus Particle Production. J. Virol. 78: 882-891 [Abstract] [Full Text]  
  • Palmarini, M., Mura, M., Spencer, T. E. (2004). Endogenous betaretroviruses of sheep: teaching new lessons in retroviral interference and adaptation. J. Gen. Virol. 85: 1-13 [Abstract] [Full Text]  
  • Bouamr, F., Melillo, J. A., Wang, M. Q., Nagashima, K., de Los Santos, M., Rein, A., Goff, S. P. (2003). PPPYEPTAP Motif Is the Late Domain of Human T-Cell Leukemia Virus Type 1 Gag and Mediates Its Functional Interaction with Cellular Proteins Nedd4 and Tsg101. J. Virol. 77: 11882-11895 [Abstract] [Full Text]  
  • Martin-Serrano, J., Bieniasz, P. D. (2003). A Bipartite Late-Budding Domain in Human Immunodeficiency Virus Type 1. J. Virol. 77: 12373-12377 [Abstract] [Full Text]  
  • Martin-Serrano, J., Yarovoy, A., Perez-Caballero, D., Bieniasz, P. D. (2003). Divergent retroviral late-budding domains recruit vacuolar protein sorting factors by using alternative adaptor proteins. Proc. Natl. Acad. Sci. USA 100: 12414-12419 [Abstract] [Full Text]  
  • Yasuda, J., Nakao, M., Kawaoka, Y., Shida, H. (2003). Nedd4 Regulates Egress of Ebola Virus-Like Particles from Host Cells. J. Virol. 77: 9987-9992 [Abstract] [Full Text]  
  • Goff, A., Ehrlich, L. S., Cohen, S. N., Carter, C. A. (2003). Tsg101 Control of Human Immunodeficiency Virus Type 1 Gag Trafficking and Release. J. Virol. 77: 9173-9182 [Abstract] [Full Text]  
  • Gottwein, E., Bodem, J., Muller, B., Schmechel, A., Zentgraf, H., Krausslich, H.-G. (2003). The Mason-Pfizer Monkey Virus PPPY and PSAP Motifs Both Contribute to Virus Release. J. Virol. 77: 9474-9485 [Abstract] [Full Text]  
  • Tanzi, G. O., Piefer, A. J., Bates, P. (2003). Equine Infectious Anemia Virus Utilizes Host Vesicular Protein Sorting Machinery during Particle Release. J. Virol. 77: 8440-8447 [Abstract] [Full Text]  
  • Goila-Gaur, R., Demirov, D. G., Orenstein, J. M., Ono, A., Freed, E. O. (2003). Defects in Human Immunodeficiency Virus Budding and Endosomal Sorting Induced by TSG101 Overexpression. J. Virol. 77: 6507-6519 [Abstract] [Full Text]  
  • Martin-Serrano, J., Zang, T., Bieniasz, P. D. (2003). Role of ESCRT-I in Retroviral Budding. J. Virol. 77: 4794-4804 [Abstract] [Full Text]  
  • Ott, D. E., Coren, L. V., Sowder, R. C. II, Adams, J., Schubert, U. (2003). Retroviruses Have Differing Requirements for Proteasome Function in the Budding Process. J. Virol. 77: 3384-3393 [Abstract] [Full Text]  
  • Davis, D. A., Brown, C. A., Newcomb, F. M., Boja, E. S., Fales, H. M., Kaufman, J., Stahl, S. J., Wingfield, P., Yarchoan, R. (2003). Reversible Oxidative Modification as a Mechanism for Regulating Retroviral Protease Dimerization and Activation. J. Virol. 77: 3319-3325 [Abstract] [Full Text]  
  • Licata, J. M., Simpson-Holley, M., Wright, N. T., Han, Z., Paragas, J., Harty, R. N. (2003). Overlapping Motifs (PTAP and PPEY) within the Ebola Virus VP40 Protein Function Independently as Late Budding Domains: Involvement of Host Proteins TSG101 and VPS-4. J. Virol. 77: 1812-1819 [Abstract] [Full Text]  
  • Yueh, A., Goff, S. P. (2003). Phosphorylated Serine Residues and an Arginine-Rich Domain of the Moloney Murine Leukemia Virus p12 Protein Are Required for Early Events of Viral Infection. J. Virol. 77: 1820-1829 [Abstract] [Full Text]  
  • Sakalian, M., Dittmer, S. S., Gandy, A. D., Rapp, N. D., Zabransky, A., Hunter, E. (2002). The Mason-Pfizer Monkey Virus Internal Scaffold Domain Enables In Vitro Assembly of Human Immunodeficiency Virus Type 1 Gag. J. Virol. 76: 10811-10820 [Abstract] [Full Text]  
  • Le Blanc, I., Prevost, M.-C., Dokhelar, M.-C., Rosenberg, A. R. (2002). The PPPY Motif of Human T-Cell Leukemia Virus Type 1 Gag Protein Is Required Early in the Budding Process. J. Virol. 76: 10024-10029 [Abstract] [Full Text]  
  • Wang, H., Norris, K. M., Mansky, L. M. (2002). Analysis of Bovine Leukemia Virus Gag Membrane Targeting and Late Domain Function. J. Virol. 76: 8485-8493 [Abstract] [Full Text]  
  • Serhan, F., Jourdan, N., Saleun, S., Moullier, P., Duisit, G. (2002). Characterization of Producer Cell-Dependent Restriction of Murine Leukemia Virus Replication. J. Virol. 76: 6609-6617 [Abstract] [Full Text]  
  • Ma, Y. M., Vogt, V. M. (2002). Rous Sarcoma Virus Gag Protein-Oligonucleotide Interaction Suggests a Critical Role for Protein Dimer Formation in Assembly. J. Virol. 76: 5452-5462 [Abstract] [Full Text]  
  • Strack, B., Calistri, A., Gottlinger, H. G. (2002). Late Assembly Domain Function Can Exhibit Context Dependence and Involves Ubiquitin Residues Implicated in Endocytosis. J. Virol. 76: 5472-5479 [Abstract] [Full Text]  
  • Freed, E. O. (2002). Viral Late Domains. J. Virol. 76: 4679-4687 [Full Text]  
  • Patnaik, A., Chau, V., Li, F., Montelaro, R. C., Wills, J. W. (2002). Budding of Equine Infectious Anemia Virus Is Insensitive to Proteasome Inhibitors. J. Virol. 76: 2641-2647 [Abstract] [Full Text]  
  • Patnaik, A., Wills, J. W. (2002). In Vivo Interference of Rous Sarcoma Virus Budding by cis Expression of a WW Domain. J. Virol. 76: 2789-2795 [Abstract] [Full Text]  
  • Ott, D. E., Coren, L. V., Sowder, R. C. II, Adams, J., Nagashima, K., Schubert, U. (2002). Equine Infectious Anemia Virus and the Ubiquitin-Proteasome System. J. Virol. 76: 3038-3044 [Abstract] [Full Text]  
  • Li, F., Chen, C., Puffer, B. A., Montelaro, R. C. (2002). Functional Replacement and Positional Dependence of Homologous and Heterologous L Domains in Equine Infectious Anemia Virus Replication. J. Virol. 76: 1569-1577 [Abstract] [Full Text]  
  • Muller, B., Patschinsky, T., Krausslich, H.-G. (2002). The Late-Domain-Containing Protein p6 Is the Predominant Phosphoprotein of Human Immunodeficiency Virus Type 1 Particles. J. Virol. 76: 1015-1024 [Abstract] [Full Text]  
  • Demirov, D. G., Ono, A., Orenstein, J. M., Freed, E. O. (2002). Overexpression of the N-terminal domain of TSG101 inhibits HIV-1 budding by blocking late domain function. Proc. Natl. Acad. Sci. USA 99: 955-960 [Abstract] [Full Text]  
  • Demirov, D. G., Orenstein, J. M., Freed, E. O. (2002). The Late Domain of Human Immunodeficiency Virus Type 1 p6 Promotes Virus Release in a Cell Type-Dependent Manner. J. Virol. 76: 105-117 [Abstract] [Full Text]  
  • Parker, S. D., Hunter, E. (2001). Activation of the Mason-Pfizer monkey virus protease within immature capsids invitro. Proc. Natl. Acad. Sci. USA 10.1073/pnas.251460998v1 [Abstract] [Full Text]  
  • Harty, R. N., Brown, M. E., McGettigan, J. P., Wang, G., Jayakar, H. R., Huibregtse, J. M., Whitt, M. A., Schnell, M. J. (2001). Rhabdoviruses and the Cellular Ubiquitin-Proteasome System: a Budding Interaction. J. Virol. 75: 10623-10629 [Abstract] [Full Text]  
  • Chen, C., Li, F., Montelaro, R. C. (2001). Functional Roles of Equine Infectious Anemia Virus Gag p9 in Viral Budding and Infection. J. Virol. 75: 9762-9770 [Abstract] [Full Text]  
  • Hong, S., Choi, G., Park, S., Chung, A.-S., Hunter, E., Rhee, S. S. (2001). Type D Retrovirus Gag Polyprotein Interacts with the Cytosolic Chaperonin TRiC. J. Virol. 75: 2526-2534 [Abstract] [Full Text]  
  • Yu, F., Joshi, S. M., Ma, Y. M., Kingston, R. L., Simon, M. N., Vogt, V. M. (2001). Characterization of Rous Sarcoma Virus Gag Particles Assembled In Vitro. J. Virol. 75: 2753-2764 [Abstract] [Full Text]  
  • Harty, R. N., Brown, M. E., Wang, G., Huibregtse, J., Hayes, F. P. (2000). A PPxY motif within the VP40 protein of Ebola virus interacts physically and functionally with a ubiquitin ligase: Implications for filovirus budding. Proc. Natl. Acad. Sci. USA 10.1073/pnas.250277297v1 [Abstract] [Full Text]  
  • Vogt, V. M. (2000). Ubiquitin in retrovirus assembly: Actor or bystander?. Proc. Natl. Acad. Sci. USA 97: 12945-12947 [Full Text]  
  • Strack, B., Calistri, A., Accola, M. A., Palu, G., Gottlinger, H. G. (2000). A role for ubiquitin ligase recruitment in retrovirus release. Proc. Natl. Acad. Sci. USA 97: 13063-13068 [Abstract] [Full Text]  
  • Patnaik, A., Chau, V., Wills, J. W. (2000). Ubiquitin is part of the retrovirus budding machinery. Proc. Natl. Acad. Sci. USA 97: 13069-13074 [Abstract] [Full Text]  
  • Jayakar, H. R., Murti, K. G., Whitt, M. A. (2000). Mutations in the PPPY Motif of Vesicular Stomatitis Virus Matrix Protein Reduce Virus Budding by Inhibiting a Late Step in Virion Release. J. Virol. 74: 9818-9827 [Abstract] [Full Text]  
  • Yuan, B., Campbell, S., Bacharach, E., Rein, A., Goff, S. P. (2000). Infectivity of Moloney Murine Leukemia Virus Defective in Late Assembly Events Is Restored by Late Assembly Domains of Other Retroviruses. J. Virol. 74: 7250-7260 [Abstract] [Full Text]  
  • Accola, M. A., Strack, B., Göttlinger, H. G. (2000). Efficient Particle Production by Minimal Gag Constructs Which Retain the Carboxy-Terminal Domain of Human Immunodeficiency Virus Type 1 Capsid-p2 and a Late Assembly Domain. J. Virol. 74: 5395-5402 [Abstract] [Full Text]  
  • Parker, S. D., Hunter, E. (2000). A Cell-Line-Specific Defect in the Intracellular Transport and Release of Assembled Retroviral Capsids. J. Virol. 74: 784-795 [Abstract] [Full Text]  
  • Sakalian, M., Hunter, E. (1999). Separate Assembly and Transport Domains within the Gag Precursor of Mason-Pfizer Monkey Virus. J. Virol. 73: 8073-8082 [Abstract] [Full Text]  
  • Dettenhofer, M., Yu, X.-F. (1999). Proline Residues in Human Immunodeficiency Virus Type 1 p6Gag Exert a Cell Type-Dependent Effect on Viral Replication and Virion Incorporation of Pol Proteins. J. Virol. 73: 4696-4704 [Abstract] [Full Text]  
  • Harty, R. N., Paragas, J., Sudol, M., Palese, P. (1999). A Proline-Rich Motif within the Matrix Protein of Vesicular Stomatitis Virus and Rabies Virus Interacts with WW Domains of Cellular Proteins: Implications for Viral Budding. J. Virol. 73: 2921-2929 [Abstract] [Full Text]  
  • Craven, R. C., Harty, R. N., Paragas, J., Palese, P., Wills, J. W. (1999). Late Domain Function Identified in the Vesicular Stomatitis Virus M Protein by Use of Rhabdovirus-Retrovirus Chimeras. J. Virol. 73: 3359-3365 [Abstract] [Full Text]  
  • Puffer, B. A., Watkins, S. C., Montelaro, R. C. (1998). Equine Infectious Anemia Virus Gag Polyprotein Late Domain Specifically Recruits Cellular AP-2 Adapter Protein Complexes during Virion Assembly. J. Virol. 72: 10218-10221 [Abstract] [Full Text]  
  • Harty, R. N., Brown, M. E., Wang, G., Huibregtse, J., Hayes, F. P. (2000). A PPxY motif within the VP40 protein of Ebola virus interacts physically and functionally with a ubiquitin ligase: Implications for filovirus budding. Proc. Natl. Acad. Sci. USA 97: 13871-13876 [Abstract] [Full Text]  
  • Parker, S. D., Hunter, E. (2001). Activation of the Mason-Pfizer monkey virus protease within immature capsids invitro. Proc. Natl. Acad. Sci. USA 98: 14631-14636 [Abstract] [Full Text]