ArticleJournal of virology2009
Vaccinia virus H7 protein contributes to the formation of crescent membrane precursors of immature virions.
Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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.
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.
Who cites it
24 citing papers in PubMed, 29 citations in OpenAlex.
- Poxvirus infection triggers remodeling of host m⁶A epitranscriptome and benefits from the m⁶A regulatory responses.Virology journal · 2026Article
- Lumpy Skin Disease Virus Pathogenesis: Viral Protein Functions and Comparative Insights from Vaccinia Virus.Animals : an open access journal from MDPI · 2025Review
- Temporal expression classes and functions of vaccinia virus and mpox (monkeypox) virus genes.mBio · 2025Review
- African Swine Fever Virus Host-Pathogen Interactions.Sub-cellular biochemistry · 2023Article
- Vaccinia virus H7-protein is required for the organization of the viral scaffold protein into hexamers.Scientific reports · 2022Article
- Structure-Function Analysis of Two Interacting Vaccinia Proteins That Are Critical for Viral Morphogenesis: L2 and A30.5.Journal of virology · 2022Article
- Origin of the poxviral membrane: A 50-year-old riddle.PLoS pathogens · 2018Review
- Enigmatic origin of the poxvirus membrane from the endoplasmic reticulum shown by 3D imaging of vaccinia virus assembly mutants.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Deletion of the Vaccinia Virus I2 Protein Interrupts Virion Morphogenesis, Leading to Retention of the Scaffold Protein and Mislocalization of Membrane-Associated Entry Proteins.Journal of virology · 2017Article
- Vaccinia Virus A6 Is a Two-Domain Protein Requiring a Cognate N-Terminal Domain for Full Viral Membrane Assembly Activity.Journal of virology · 2017Article
- Poxviruses Encode a Reticulon-Like Protein that Promotes Membrane Curvature.Cell reports · 2016Article
- Poxvirus membrane biogenesis.Virology · 2015Review
- Structure-function analysis of vaccinia virus H7 protein reveals a novel phosphoinositide binding fold essential for poxvirus replication.Journal of virology · 2015Article
- Review
- Direct formation of vaccinia virus membranes from the endoplasmic reticulum in the absence of the newly characterized L2-interacting protein A30.5.Journal of virology · 2013Article
- Association of the vaccinia virus A11 protein with the endoplasmic reticulum and crescent precursors of immature virions.Journal of virology · 2013Article
- Analysis of the role of vaccinia virus H7 in virion membrane biogenesis with an H7-deletion mutant.Journal of virology · 2013Article
- Analysis of viral membranes formed in cells infected by a vaccinia virus L2-deletion mutant suggests their origin from the endoplasmic reticulum.Journal of virology · 2013Article
- Biogenesis of the vaccinia virus membrane: genetic and ultrastructural analysis of the contributions of the A14 and A17 proteins.Journal of virology · 2013Article
- Vaccinia virus virion membrane biogenesis protein A11 associates with viral membranes in a manner that requires the expression of another membrane biogenesis protein, A6.Journal of virology · 2012Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Crescent membranes are the first viral structures that can be discerned during poxvirus morphogenesis. The crescents consist of a lipoprotein membrane and an outer lattice scaffold, which provides uniform curvature. Relatively little is known regarding the composition of the crescent membrane or its mode of formation. Here, we show that the H7 protein, which is conserved in all vertebrate poxviruses but has no discernible functional motifs or nonpoxvirus homologs, contributes to the formation of crescents and immature virions. Synthesis of the 17-kDa H7 protein was dependent on DNA replication and occurred late during vaccinia virus infection. Unlike many late proteins, however, H7 was not incorporated into mature virions or localized in cellular organelles. To gain insight into the role of H7, an inducible mutant was constructed and shown to have a conditional lethal phenotype: H7 expression and infectious virus formation were dependent on isopropyl-beta-D-thiogalactopyranoside. In the absence of inducer, viral late proteins were made, but membrane and core proteins were not processed by the I7 protease. A block in morphogenesis was demonstrated by transmission electron microscopy: neither typical crescents nor immature virions were detected in the absence of inducer. Instead, factory areas of the cytoplasm contained large, electron-dense inclusions, some of which had partially coated membrane segments at their surfaces. Separate, lower-density inclusions containing the D13 scaffold protein and endoplasmic reticulum membranes were also present. These features are most similar to those previously seen when expression of A11, another conserved nonvirion protein, is repressed.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.