Evidence map›Paper›PMID 19710652›Full record

ArticleNature2009

Photosystem I gene cassettes are present in marine virus genomes.

Itai Sharon, Ariella Alperovitch, Forest Rohwer, Matthew Haynes, Fabian Glaser, Nof Atamna-Ismaeel, Ron Y Pinter, Frédéric Partensky, Eugene V Koonin, Yuri I Wolf and 2 more

Abstract read
In one paragraph

Article in Nature, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
10.6field-weighted citation impact, top 1% 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

100 citing papers in PubMed, 207 citations in OpenAlex.

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  19. Review
  20. Article

40 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

12 authors at 5 institutions in 4 countries.

Itai Sharon *Faculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Ariella Alperovitch *Faculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Forest RohwerDepartment of Biology, San Diego State University, San Diego 92182, California, USA.
Matthew HaynesDepartment of Biology, San Diego State University, San Diego 92182, California, USA.
Fabian GlaserBioinformatics Knowledge Unit, Lorry I. Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Nof Atamna-IsmaeelFaculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Ron Y PinterFaculty of Computer Science, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Frédéric PartenskyCNRS and UPMC-Université Paris 6 (UMR 7144), Station Biologique, 29682 Roscoff, France.
Eugene V KooninNational Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA.
Yuri I WolfNational Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA.
Nathan NelsonDepartment of Biochemistry, George S. Wise Faculty of Life Sciences, Daniella Rich Institute for Structural Biology, Tel Aviv University, Tel Aviv 69978, Israel.
Oded BéjàFaculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Technion – Israel Institute of Technology · ILNational Institutes of Health · USSan Diego State University · USCentre National de la Recherche Scientifique · FRTel Aviv University · IL

Funding

Intramural NIH HHS Z99 LM999999
6 · The paper itself

Abstract

Cyanobacteria of the Synechococcus and Prochlorococcus genera are important contributors to photosynthetic productivity in the open oceans. Recently, core photosystem II (PSII) genes were identified in cyanophages and proposed to function in photosynthesis and in increasing viral fitness by supplementing the host production of these proteins. Here we show evidence for the presence of photosystem I (PSI) genes in the genomes of viruses that infect these marine cyanobacteria, using pre-existing metagenomic data from the global ocean sampling expedition as well as from viral biomes. The seven cyanobacterial core PSI genes identified in this study, psaA, B, C, D, E, K and a unique J and F fusion, form a cluster in cyanophage genomes, suggestive of selection for a distinct function in the virus life cycle. The existence of this PSI cluster was confirmed with overlapping and long polymerase chain reaction on environmental DNA from the Northern Line Islands. Potentially, the seven proteins encoded by the viral genes are sufficient to form an intact monomeric PSI complex. Projection of viral predicted peptides on the cyanobacterial PSI crystal structure suggested that the viral-PSI components might provide a unique way of funnelling reducing power from respiratory and other electron transfer chains to the PSI.

Indexed as

Adhesins, BacterialAmino Acid SequenceBacteriophagesBiodiversityGenes, BacterialGenes, ViralGenome, BacterialGenome, ViralGeographyLipoproteinsModels, MolecularMolecular Sequence DataOceans and SeasOpen Reading FramesOxidation-ReductionPhotosynthesisAdhesins, BacterialLipoproteinsPhotosystem I Protein ComplexPsaA protein, StreptococcusViral Proteins

Identifiers

PMID19710652
PMCPMC4605144
OpenAlexW2006086470

What OpenQuestion holds

Textmetadata
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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.