Evidence map›Paper›PMID 12525615›Full record

ArticleJournal of virology2003

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.

Jillian M Licata, Martha Simpson-Holley, Nathan T Wright, Ziying Han, Jason Paragas, Ronald N Harty

Abstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 158 papers.

0numbers the graph read from it
0cells of the map it votes in
158citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

158 citing papers in PubMed.

  1. bioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Nonlytic Egress and Transmission in the Virus World.Annual review of biochemistry · 2025
    Review
  5. Neuronal Deletion ofBiomolecules · 2025
    Article
  6. Article
  7. Rational design of self-amplifying virus-like vesicles with Ebola virus glycoprotein as vaccines.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Cheminformatics-Based Study Identifies Potential Ebola VP40 Inhibitors.International journal of molecular sciences · 2023
    Article
  18. Chaperone-assisted selective autophagy targets filovirus VP40 as a client and restricts egress of virus particles.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Review
  20. Article

98 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jillian M LicataDepartment of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6049, USA.
Martha Simpson-Holley
Nathan T Wright
Ziying Han
Jason Paragas
Ronald N Harty

Funding

TRAINING IN VIROLOGYT32AI007324 · NIAID · WISTAR INSTITUTE · PI Paul Bates, Matthew D. Weitzman · 1989 to 2026
$6.8M
Budding of Negative-sense RNA VirusesR01AI046499 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI HARTY, RONALD N. · 2002 to 2006
$1.4M
NIAID NIH HHS AI007324NIAID NIH HHS AI46499NIAID NIH HHS R01 AI046499NIAID NIH HHS T32 AI007324
6 · The paper itself

Abstract

The VP40 protein of Ebola virus can bud from mammalian cells in the form of lipid-bound, virus-like particles (VLPs), and late budding domains (L-domains) are conserved motifs (PTAP, PPxY, or YxxL; where "x" is any amino acid) that facilitate the budding of VP40-containing VLPs. VP40 is unique in that potential overlapping L-domains with the sequences PTAP and PPEY are present at amino acids 7 to 13 of VP40 (PTAPPEY). L-domains are thought to function by interacting with specific cellular proteins, such as the ubiquitin ligase Nedd4, and a component of the vacuolar protein sorting (vps) pathway, tsg101. Mutational analysis of the PTAPPEY sequence of VP40 was performed to understand further the contribution of each individual motif in promoting VP40 budding. In addition, the contribution of tsg101 and a second member of the vps pathway, vps4, in facilitating budding was addressed. Our results indicate that (i) both the PTAP and PPEY motifs contribute to efficient budding of VP40-containing VLPs; (ii) PTAP and PPEY can function as L-domains when separated and moved from the N terminus (amino acid position 7) to the C terminus (amino acid position 316) of full-length VP40; (iii) A VP40-PTAP/tsg101 interaction recruits tsg101 into budding VLPs; (iv) a VP40-PTAP/tsg101 interaction recruits VP40 into lipid raft microdomains; and (v) a dominant-negative mutant of vps4 (E228Q), but not wild-type vps4, significantly inhibited the budding of Ebola virus (Zaire). These results provide important insights into the complex interplay between viral and host proteins during the late stages of Ebola virus budding.

Indexed as

Adenosine TriphosphatasesAmino Acid MotifsCell LineDNA-Binding ProteinsEbolavirusEndosomal Sorting Complexes Required for TransportHumansMembrane MicrodomainsNucleoproteinsTranscription FactorsTsg101 ProteinViral Core ProteinsVirionAdenosine TriphosphatasesDNA-Binding ProteinsEndosomal Sorting Complexes Required for TransportNucleoproteinsnucleoprotein VP40, Ebola virusTranscription FactorsTsg101 ProteinViral Core Proteins

Identifiers

PMID12525615
PMCPMC140960

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.