Evidence map›Paper›PMID 32847854›Full record

ArticleJournal of virology2020

Repair of an Attenuated Low-Passage Murine Cytomegalovirus Bacterial Artificial Chromosome Identifies a Novel Spliced Gene Essential for Salivary Gland Tropism.

Alec James Redwood, Laura Lee Masters, Baca Chan, Shay Leary, Cathy Forbes, Stipan Jonjić, Vanda Juranić Lisnić, Berislav Lisnić, Lee Martin Smith

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 39% of its field
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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Immune surveillance of cytomegalovirus in tissues.Cellular & molecular immunology · 2024
    Review
  3. Article
  4. Article
  5. Review
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

9 authors at 5 institutions in 2 countries.

Alec James RedwoodSchool of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia alec.redwood@uwa.edu.au.ORCID 0000-0001-8601-8292
Laura Lee MastersSchool of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia.
Baca ChanSchool of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia.
Shay LearyThe Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia.
Cathy ForbesTelethon Kids Institute, Perth Children's Hospital, Nedlands, Western Australia.
Stipan JonjićThe Department for Histology and Embryology and Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.
Vanda Juranić LisnićThe Department for Histology and Embryology and Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.
Berislav Lisnić *The Department for Histology and Embryology and Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.
Lee Martin Smith *SpeedX Pty Ltd., National Innovative Centre, Evenleigh, New South Wales, Australia.
The University of Western Australia · AUUniversity of Rijeka · HRData61 · AUMurdoch University · AUThe Kids Research Institute Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cloning of herpesviruses as bacterial artificial chromosomes (BACs) has revolutionized the study of herpesvirus biology, allowing rapid and precise manipulation of viral genomes. Several clinical strains of human cytomegalovirus (HCMV) have been cloned as BACs; however, no low-passage strains of murine CMV (MCMV), which provide a model mimicking these isolates, have been cloned. Here, the low-passage G4 strain of was BAC cloned. G4 carries an m157 gene that does not ligate the natural killer (NK) cell-activating receptor, Ly49H, meaning that unlike laboratory strains of MCMV, this virus replicates well in C57BL/6 mice. This BAC clone exhibited normal replication during acute infection in the spleen and liver but was attenuated for salivary gland tropism. Next-generation sequencing revealed a C-to-A mutation at nucleotide position 188422, located in the 3' untranslated region of sgg1, a spliced gene critical for salivary gland tropism. Repair of this mutation restored tropism for the salivary glands. Transcriptional analysis revealed a novel spliced gene within the sgg1 locus. This small open reading frame (ORF), sgg1.1, starts at the 3' end of the first exon of sgg1 and extends exon 2 of sgg1. This shorter spliced gene is prematurely terminated by the nonsense mutation at nt 188422. Sequence analysis of tissue culture-passaged virus demonstrated that sgg1.1 was stable, although other mutational hot spots were identified. The G4 BAC will allow

Indexed as

AnimalsChromosomes, Artificial, BacterialDNA, RecombinantFemaleGenome, ViralHerpesviridae InfectionsHumansKiller Cells, NaturalMiceMice, Inbred BALB CMice, Inbred C57BLMuromegalovirusMutationOpen Reading FramesSalivary GlandsTropismDNA, RecombinantSgg1 protein, cytomegalovirusViral ProteinsBACG4MCMVsgg1sgg1.1tissue tropism

Identifiers

PMID32847854
PMCPMC7592224
OpenAlexW3080399490

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.