Evidence map›Paper›PMID 18184716›Full record

ArticleJournal of virology2008

Kaposi's sarcoma-associated herpesvirus ORF57 functions as a viral splicing factor and promotes expression of intron-containing viral lytic genes in spliceosome-mediated RNA splicing.

Vladimir Majerciak, Koji Yamanegi, Eric Allemand, Michael Kruhlak, Adrian R Krainer, Zhi-Ming Zheng

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

62 citing papers in PubMed, 84 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. mRNA Splicing ofViruses · 2024
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

2 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 at 3 institutions in 1 country.

Vladimir MajerciakHIV and AIDS Malignancy Branch, Center for Cancer Research, NCI/NIH, 10 Center Dr., Rm. 6N106, MSC-1868, Bethesda, MD 20892-1868, USA.
Koji Yamanegi
Eric Allemand
Michael Kruhlak
Adrian R Krainer
Zhi-Ming Zheng
AIDS United · USCold Spring Harbor Laboratory · USNational Institutes of Health · US

Funding

VIRAL TRANSACTIVATIONP01CA013106 · NCI · COLD SPRING HARBOR LABORATORY · PI William Richard McCombie · 1985 to 2026
$116.8M
Gene Expression and Post-Transcriptional Regulation of DNA Tumor VirusesZIASC010357 · NCI · DIVISION OF CLINICAL SCIENCES - NCI · PI ZHENG, ZHI-MING · 2009 to 2025
$24.3M
EIB Microscopy Core FacilityZICBC010915 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI WISNIEWSKI, JAN · 2009 to 2025
$6.1M
Intramural NIH HHSNCI NIH HHS CA13106NCI NIH HHS P01 CA013106
6 · The paper itself

Abstract

Kaposi's sarcoma-associated herpesvirus (KSHV) ORF57 facilitates the expression of both intronless viral ORF59 genes and intron-containing viral K8 and K8.1 genes (V. Majerciak, N. Pripuzova, J. P. McCoy, S. J. Gao, and Z. M. Zheng, J. Virol. 81:1062-1071, 2007). In this study, we showed that disruption of ORF57 in a KSHV genome led to increased accumulation of ORF50 and K8 pre-mRNAs and reduced expression of ORF50 and K-bZIP proteins but had no effect on latency-associated nuclear antigen (LANA). Cotransfection of ORF57 and K8beta cDNA, which retains a suboptimal intron of K8 pre-mRNA due to alternative splicing, promoted RNA splicing of K8beta and production of K8alpha (K-bZIP). Although Epstein-Barr virus EB2, a closely related homolog of ORF57, had a similar activity in the cotransfection assays, herpes simplex virus type 1 ICP27 was inactive. This enhancement of RNA splicing by ORF57 correlates with the intact N-terminal nuclear localization signal motifs of ORF57 and takes place in the absence of other viral proteins. In activated KSHV-infected B cells, KSHV ORF57 partially colocalizes with splicing factors in nuclear speckles and assembles into spliceosomal complexes in association with low-abundance viral ORF50 and K8 pre-mRNAs and essential splicing components. The association of ORF57 with snRNAs occurs by ORF57-Sm protein interaction. We also found that ORF57 binds K8beta pre-mRNAs in vitro in the presence of nuclear extracts. Collectively our data indicate that KSHV ORF57 functions as a novel splicing factor in the spliceosome-mediated splicing of viral RNA transcripts.

Indexed as

IntronsRNA SplicingSpliceosomesBase SequenceBasic-Leucine Zipper Transcription FactorsBlotting, NorthernCell LineDNA, ComplementaryDNA PrimersFluorescent Antibody TechniqueHerpesvirus 8, HumanHumansOpen Reading FramesReverse Transcriptase Polymerase Chain ReactionRNA, MessengerBasic-Leucine Zipper Transcription FactorsDNA, ComplementaryDNA PrimersRNA, Messenger

Identifiers

PMID18184716
PMCPMC2258979
OpenAlexW2158529979

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.