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A large deletion in the matrix domain of the human immunodeficiency virus gag gene redirects virus particle assembly from the plasma membrane to the endoplasmic reticulum
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Morphogenesis of retroviruses involves assembly of the structural Gag and Gag-Pol polyproteins with subsequent budding of the virus particle from the plasma membrane and proteolytic cleavage by the viral proteinase. The matrix (MA) domain, representing the N-terminal segment of Gag, plays a critical role in this process. We constructed an in-frame deletion in the MA coding region (lacking codons 16 to 99) of the human immunodeficiency virus (HIV) type 1 gag gene. Following transient transfection of the complete proviral DNA carrying the deletion, the mutant polyprotein was synthesized and proteolytically processed like the wild-type polyprotein. However, release of virus particles was reduced approximately 10-fold. The extracellular particles that were released did not contain viral glycoproteins and were noninfectious. Electron micrographs revealed budding of virus particles into the endoplasmic reticulum (ER) of transfected cells and large numbers of particles within the ER. These particles were all immature and morphologically indistinguishable from intracisternal A-type particles, a class of murine endogenous retrovirus elements. Budding structures at the plasma membrane were rarely seen and only a few extracellular particles were observed, but in contrast to those in the ER, these particles had the morphology of mature particles, similar to that of wild-type HIV, except for the lack of surface projections.
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“alterations in the MA domain of HIV-1 Gag, whether through amino acid substitutions or deletions, have been shown to redirect virus assembly to the cytoplasm or intracellular membranes, such as the endoplasmic reticulum”
From Beyond reverse transcription: molecular mechanisms and emerging paradigms in retroviral replication (2026) · cites this paper as Fäcke et al. 1993
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“Numerous studies have identified the matrix domain of retroviral Gag precursors as containing a signal or signals important for proper intracellular targeting (9, 17, 35).”
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Tobaly-Tapiero, J., Bittoun, P., Giron, M.-L., Neves, M., Koken, M. H. M., Saı̈b, A., & de Thé, H. (2001) · Journal of Virology · doi:10.1128/jvi.75.9.4367-4375.2001 · Cited by 39
“Point mutations in Gag precursors lead to drastic changes in the morphogenic pathways for capsid assembly or in the site of budding (5, 11, 25).”
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Waheed, A. A., Ono, A., & Freed, E. O. (2008) · Methods in molecular biology · doi:10.1007/978-1-59745-170-3_12 · Cited by 32
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“12 At the plasma membrane, MA appears to direct assembly to discrete cholesterol and sphingolipid-rich regions.”
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“gesting that proper folding of the Gag protein is important (9, 13, 29).”
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“These functions include targeting the Gag precursor to the plasma membrane (8, 16, 18, 37), promoting virus particle assembly and release (26, 31), governing envelope glycoprotein incorporation into virions (7, 9, 34), facilitating viral entry (35), and mediating the nuclear transport of the preintegration complex in…”
BackgroundFrancesco, M. A. D., Caruso, A., Fallacara, F., Canaris, A. D., Dima, F., Poiesi, C., Licenziati, S., Corulli, M., MARTINELLI, F., Fiorentini, S., et al. (1998) · AIDS · doi:10.1097/00002030-199803000-00001 · Cited by 30
“port of viral RNA to the plasma membrane [1,5,6], and the co-incorporation of envelope antigen [4], as well as the presence of signals for particle assembly [1].”
BackgroundThe Major Homology Region of the HIV-1 Gag Precursor Influences Membrane Affinity
Ebbets-Reed, D., Scarlata, S., & Carter, C. A. (1996) · Biochemistry · doi:10.1021/bi9606399 · Cited by 30
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“Redirection of budding was also observed for a large internal deletion mutation in the human immunodeficiency virus type 1 (HIV-1) MA domain removing 85 amino acids but leaving the signal for N-myristoylation intact (5, 6).”
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“Moreover, the only part of MA necessary for HIV or M-MuLV assembly appears to be its membrane-binding myristate anchor (Wang et al., 1993; Faecke et al., 1993; Barklis et al., 1997).”
BackgroundAnalysis of human immunodeficiency virus matrix domain replacements.
Scholz, I. G., Still, A., Dhenub, T. C., Coday, K., Webb, M., & Barklis, E. (2008) · Virology · doi:10.1016/j.virol.2007.10.010 · Cited by 29
“A number of biochemical and genetic studies have identified different features of HIV-1 MA that influence PrGag localization, membrane binding, and assembly (Bryant and Ratner, 1990; Facke et al., 1993; Lindwasser and Resh, 2001, 2002; Murray et al., 2005; Ono and Freed, 1999; Ono et al., 2000a, 2004; Pal et al., 1990…”
Nef Enhances Human Immunodeficiency Virus Type 1 Infectivity in the Absence of Matrix
Dorfman, T., Popova, E. N., Pizzato, M., & Göttlinger, H. G. (2002) · Journal of Virology · doi:10.1128/jvi.76.13.6857-6862.2002 · Cited by 25
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“In addition, large deletions in MA within the context of Gag have resulted in the intracellular budding of virus-like particles (12, 29); specifically, disruption of the MA domain from amino acids 84 to 88 appears to be implicated in this redirection of virus budding (16).”
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Jones, I. M., & Morikawa, Y. (1998) · Reviews in Medical Virology · doi:10.1002/(sici)1099-1654(199804/06)8:2 · Cited by 24
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N-Terminal Gag Domain Required for Foamy Virus Particle Assembly and Export
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“On the other hand, large MA deletions still allowed human immunodeficiency virus type 1 particle assembly at an alternate intracellular site (10), and the complete deletion of MA resulted in the generation of replication-competent virus, provided that the long cytoplasmic tail of Env TM was removed (38).”
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Giddings, A. M., Ritter, G., & Mulligan, M. J. (1998) · Virology · doi:10.1006/viro.1998.9284 · Cited by 19
“Mutations in the HIV-1 MA protein can redirect particle formation to internal cellular compartments (Facke et al., 1993; Freed et al., 1994; Gallina et al., 1994; Chazal et al., 1995).”
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“In amutant containing themyristoyl group but lacking theHBR, production of viral particles was decreased by 10-fold, and those that formed near the plasma membrane did not contain Envelope proteins (Env) [22].”
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“∆MA Gag [24] is lacking amino acids 16 to 99 in the MA domain.”
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Feizpour, A., Yu, X., Akiyama, H., Miller, C. M., Edmans, E., Gummuluru, S., & Reinhard, B. M. (2014) · Small · doi:10.1002/smll.201402184 · Cited by 14
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Barklis, E., Staubus, A. O., Mack, A. R., Harper, L., Barklis, R. L., & Alfadhli, A. (2018) · Virology · doi:10.1016/j.virol.2018.03.004 · Cited by 13
“…HIV-1 relative to the PMs of producer cells (Lorizate et al., 2013), while our data suggest the higher percentage of ΔMA versus WT VLPs that incorporate the PS biosensor may pertain an intracellular localization that may overlap the ER (Facke et al., 1993), where PS synthesis occurs (Vance, 2015).”
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“A deletion mutation that disrupts the structure of the HIV-1 matrix domain without altering myristylation redirects capsid assembly and membrane extrusion to the endoplasmic reticulum (10).”
BackgroundFluorescence Microscopy of the HIV-1 Envelope
Carravilla, P., Nieva, J. L., & Eggeling, C. (2020) · Viruses · doi:10.3390/v12030348 · Cited by 13
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“The M (membrane-binding) domain consists of a myristate moiety together with several basic residues in the N terminus of MA and targets newly synthesized Gag proteins to the plasma membrane (11, 38).”
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Hübner, W., & Chen, B. K. (2006) · Virology · doi:10.1016/j.virol.2006.04.024 · Cited by 18
“Mutations in HIV-1 MA or total replacement of MA with a constitutive membrane anchor results in increased assembly at inappropriate intracellular compartments (Cannon et al., 1997; Facke et al., 1993; Lee and Linial, 1994; Ono and Freed, 2004; Ono et al., 2000; Reil et al., 1998; Spearman et al., 1994; Yuan et al., 19…”
BackgroundTargeting human immunodeficiency virus type 1 assembly, maturation and budding.
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“Deleting or mutating the highly basic domain alters the cellular distributions of Gag away from the plasma membrane and into intracellular compartments such as the endoplasmic reticulum, late endosomes or MVBs (Facke et al., 1993; Ono et al., 2004; Ono and Freed, 2004; Zhou and Resh, 1996).”
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“Deletion of a large portion of MA retargets Gag assembly to the endoplasmic reticulum [31,32] and mutations in the highly basic domain of MA or between residues 84 and 88 induce a relocalization of Gag to a late endosome (LE)/multivesicular body (MVB) compartment [9,25,26,33].”
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“Deleting a large part of the globular MA domain of HIV-1 Gag led to budding of immature virus particles into the lumen of the ER with almost complete loss of extracellular virion formation (16).”
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The HIV-1 matrix protein p17 activates the transcription factors c-Myc and CREB in human B cells.
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Specificity of Plasma Membrane Targeting by the Rous Sarcoma Virus Gag Protein
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“Numerous mutations and deletions affecting the polybasic stretch between amino acids 15 and 31 of the HIV M domain result in relocalization of the Gag precursor to intracellular membranes (10, 13, 19, 32, 48, 57).”
BackgroundRetrotransposition of Nonviral RNAs in an Avian Packaging Cell Line
Lum, R., & Linial, M. L. (1998) · Journal of Virology · doi:10.1128/jvi.72.5.4057-4064.1998 · Cited by 10
“Rather than resulting from autoretrofection events, we think that these retrogenes are episomes that may have resulted from viral budding into intracellular compartments (9, 19) or from retrogenes formed after extracellular reinfection that are blocked at integration.”
BackgroundTargeting Human Immunodeficiency Virus Type 1 Assembly, Maturation and Budding
Wapling, J., Srivastava, S., Shehu-Xhilaga, M., & Tachedjian, G. (2007) · Drug Target Insights · doi:10.1177/117739280700200020 · Cited by 11
“Membrane targeting of Gag is mediated by the N-terminal myristoyl group in concert with conserved basic amino acids at the N-terminus of the MA domain of Gag (Bryant and Ratner, 1990; Facke et al. 1993; Ono and Freed, 1999; Ono et al. 2000).”
Transport and processing of the Rous sarcoma virus Gag protein in the endoplasmic reticulum
Krishna, N. K., Weldon, R. A., & Wills, J. W. (1996) · Journal of Virology · doi:10.1128/jvi.70.3.1570-1579.1996 · Cited by 8
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“When residues 16 to 99 were deleted, the release of HIV particles from cells was reduced up to tenfold, budding events occurred preferentially at the membrane of the ER and incorporation of gpl60 into the particulate structures was inhibited [24, 51].”
Sakalian, M., & Rapp, N. D. (2005) · Virology · doi:10.1016/j.virol.2005.09.066 · Cited by 7
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“The highly basic region, characterized by a dense clus - ter of positively charged amino acid residues, represents the second domain regulating MA’s membrane binding (Facke et al. 1993; Cannon et al. 1997; Ono et al. 2000; Hermida-Matsumoto and Resh 2000).”
da Silva, E. S., Mulinge, M. M., Lemaire, M., Masquelier, C., Beraud, C., Rybicki, A., Servais, J.-Y., Iserentant, G., Schmit, J., Seguin‐Devaux, C., et al. (2016) · PLoS ONE · doi:10.1371/journal.pone.0161596 · Cited by 7
“Basic residues 17–21 mediating MA interaction with Env [137] [38, 40–42, 44, 70, 138] or AA involved in p55Gag trafficking via adaptor proteins (Y132 and V135 at the MA/CA junction) [49, 68, 139, 140] were also conserved.”
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“) f Because small sequence differences in HIV-1 MA can affect the efficiency of Env incorporation (Dorfman et al., 1994; Freed and Martin, 1995), we examined the ability of SHIV(MA) and SHIV(MA N1–96) viruses to incorporate native HIV-1 Env or ΔCT Env.”
BackgroundSpectroscopic study of an HIV‐1 capsid protein major homology region peptide analog
Clish, C. B., Peyton, D. H., & Barklis, E. (1996) · FEBS Letters · doi:10.1016/0014-5793(95)01419-5 · Cited by 6
Fiorentini, S., Becker, P., Marini, E., Marconi, P., Avolio, M., Tosti, G., Link, C., Manservigi, R., Guzmán, C., & Caruso, A. (2006) · Viral immunology · doi:10.1089/vim.2006.19.177 · Cited by 7
Hydrophilicity dependent budding and secretion of chimeric HIV Gag-V3 virus-like particles
Luo, L., Li, Y., Ha, S. D., & Kang, C. Y. (2007) · Virus Genes · doi:10.1007/s11262-007-0108-x · Cited by 6
Inositol Phosphates and Retroviral Assembly: A Cellular Perspective
Ricana, C. L., & Dick, R. A. (2021) · Viruses · doi:10.3390/v13122516 · Cited by 5
“Knowing that IP6 promotes in vitro assembly of full-length HIV Gag, but was not needed for Gag∆MA (here ∆MA refers to an internal MA deletion of amino acids 16–99 first described in [40,41]; due to the persistence of this annotation in the literature we will use ∆MA to refer to ∆16–99 as well unless otherwise noted),…”
MethodWang, C.-T., Chen, S. S.-L., & Chiang, C.-C. (2000) · Virology · doi:10.1006/viro.2000.0655 · Cited by 5
Beyond reverse transcription: molecular mechanisms and emerging paradigms in retroviral replication
Jehad, M. A., Ali, L. M., Pillai, V. N., Prabhu, S. G., Mustafa, F., & Rizvi, T. A. (2026) · FEMS Microbiology Reviews · doi:10.1093/femsre/fuaf066 · Cited by 5
“Along the same lines, alterations in the MA domain of HIV-1 Gag, whether through amino acid substitutions or deletions, have been shown to redirect virus assembly to the cyto-plasm or intracellular membranes, such as the endoplasmic reticulum (Fäcke et al. 1993 , Cannon et al. 1997 ).”
Reversible aggregation of HIV-1 Gag proteins mediated by nucleic acids
Chen, Z., & Cheng, W. (2016) · Biochemical and Biophysical Research Communications · doi:10.1016/j.bbrc.2016.12.054 · Cited by 5
“Previously, it was reported that this large truncation in the MA domain changed the site of virus budding from plasmamembrane to endoplasmic reticulum, but the morphology of resulting virions remains largely unchanged [14].”
BackgroundEllenrieder, A.-D., Kremer, W., Kattenbeck, B., Hantschel, O. D., Horn, G., Kalbitzer, H. R., & Modrow, S. (2004) · Biological Chemistry · doi:10.1515/bc.2004.026 · Cited by 4
“In addition, the capacity to form particulate structures was maintained after deletion of large parts of this protein but the assembly process was redirected to the endoplasmic reticulum (Fäcke et al., 1993).”
BackgroundResultInfluentialHIV-1 p17 matrix protein enhances type I interferon responses through the p17–OLA1–STING axis
Zhang, L., Li, S. C., Xu, X., Ma, C., Zhang, P., Ji, W., & Liu, X. (2023) · Journal of Cell Science · doi:10.1242/jcs.261500 · Cited by 3
Gautam, A., & Bhattacharya, J. (2013) · PLoS ONE · doi:10.1371/journal.pone.0061388 · Cited by 3
“Previous studies demonstrated that specific amino acid substitutions in the Gag MA region abrogate incorporation of HIV-1 Env glycoproteins into virus particles [24–26] and redirects particle assembly to intracellular sites [27,28].”
BackgroundGenomic and antigenic variation among rotavirus strains circulating in a large city of Argentina
Espul, C., Cuello, H., Martínez, N. E., de Centorbi, O. N. P., O’Ryan, M., Jackson, L., Campos, F., & Matson, D. O. (2000) · Journal of Medical Virology · doi:10.1002/1096-9071(200008)61:4 · Cited by 10
RNA ‐centric world of retroviruses: unravelling the molecular strategies of genomic RNA packaging
Jehad, M. A., Prabhu, S., Ali, L. M., Pillai, V. N., Mustafa, F., & Rizvi, T. A. (2026) · Biological reviews/Biological reviews of the Cambridge Philosophical Society · doi:10.1002/brv.70188 · Cited by 2
Human Immunodeficiency Virus From Virus Structure to Pathogenesis
Gelderblom, H. R., & Böller, K. (2005) · Kluwer Academic Publishers eBooks · doi:10.1007/0-306-47650-9_11 · Cited by 2
Spearman, P. W. (2007) · Future HIV Therapy · doi:10.2217/17469600.1.1.113 · Cited by 2
“Deletion of a large portion of the globular head of MA while retaining the N-terminal myristoylation motif of Gag leads to budding within the endoplasmic reticulum [8], while more subtle mutations in helix 1 or MA residues 84–88 redirect assembly from the plasma membrane to intracellular locations [9].”
BackgroundTsurutani, N., Momose, F., Ogawa, K., Sano, K., & Morikawa, Y. (2024) · Journal of Biological Chemistry · doi:10.1016/j.jbc.2024.105687 · Cited by 2
Proteolytic cleavage events in the maturation of HIV-1 reverse transcriptase
Abram, M. E. (2005) · D-Scholarship@Pitt (University of Pittsburgh) · Cited by 1
Virus Assembly as a Target for Antiretroviral Therapy
Barklis, E. (2013) · Springer eBooks · doi:10.1007/978-1-4614-7729-7_8 · Cited by 1
Die Rolle von p6* für den HI-viralen Replikationszyklus
Leiherer, A. (2009) · University of Regensburg Publication Server (University of Regensburg) · doi:10.5283/epub.12102
Co-evolution of HIV-1 Protease and its Substrates: A Dissertation
Kolli, M. (2009) · The Journal of the American Medical Association (JAMA) Network (American Medical Association) · doi:10.13028/hnsw-f822
Hammer, D. (2006) · University of Regensburg Publication Server (University of Regensburg) · doi:10.5283/epub.10447
Brandano, L. A. (2011) · The Journal of the American Medical Association (JAMA) Network (American Medical Association) · doi:10.13028/5zmj-9x81
Llewellyn, G. N. (2012) · Deep Blue (University of Michigan)
Danaviah, S. (2008) · ResearchSpace (University of KwaZulu-Natal)
Adjei-Asante, K. (2014) · University of Liverpool · doi:10.17638/00016073
RNA transmission and expression from inert HIV candidate vaccine virus-like-particles
Valley‐Omar, Z. (2008) · Open University of Cape Town (University of Cape Town)
Viral Proteases as Drug Targets and the Mechanisms of Drug Resistance: A Dissertation
Lin, K. (2016) · The Journal of the American Medical Association (JAMA) Network (American Medical Association) · doi:10.13028/m2gw26
“These proteins are then incorporated into viral particles while interacting with matrix domain of Gag, which is responsible for plasma membrane targeting (Frankel and Young, 1998, Facke et al., 1993, Bryant and Ratner, 1990).”
BackgroundExpression, Purification and Characterization of Hiv-1 Capsid Precursor Protein p41
Zhang, Z., Wang, L., Bai, S., Qiao, J., Shen, H., Huang, F., Gao, S., Li, S., Li, S., Gu, Y., et al. (2018) · The Protein Journal · doi:10.1007/s10930-018-9763-0
Targeting Human Immunodeficiency Virus Type 1 Assembly, Maturation and Budding
Wapling, J., Srivastava, S., Shehu-Xhilaga, M., & Tachedjian, G. (2007) · Drug Target Insights · doi:10.33393/dti.2007.1318
Metadata
- Authors
- Fäcke, M., Janetzko, A., Shoeman, R. L., & Kräusslich, H. G.
- Affiliations
- German Cancer Research Center (DE)
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 1993-08
- Volume
- 67
- Issue
- 8
- Pages
- 4972-4980
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- PMC
- PMC237885
- OpenAlex
- W2153090499
- Cited by
- 198
- References
- 46
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 3 · 2017: 1 · 2016: 5 · 2015: 2 · 2014: 4 · 2013: 2 · 2012: 5
- FWCI
- 4.61
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Virology (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Topics
- Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and Retrovirus Studies
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
- Keywords
- HIV-1, gag gene, matrix domain, viral assembly, endogenous retroviruses, viral particle release, proteolytic processing, Gag-Pol polyprotein
- MeSH terms
- Animals, Cell Line, Cell Membrane, Chlorocebus aethiops, Endoplasmic Reticulum, Enzyme-Linked Immunosorbent Assay, Humans, Kidney, Kinetics, Models, Biological, Morphogenesis, RNA, Messenger, Time Factors, Protein Biosynthesis, Virus Replication, Blotting, Western, HIV-1, Gene Products, gag, Fusion Proteins, gag-pol, Genes, gag, Gene Expression, Genome, Viral, Sequence Deletion
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