Evidence map›Paper›PMID 11713317›Full record

ArticleNucleic acids research2001

The abundance of sterile transcripts in Giardia lamblia.

H G Elmendorf, S M Singer, T E Nash

Open access · bronzeAbstract read
In one paragraph

Article in Nucleic acids research, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.5field-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

21 citing papers in PubMed, 59 citations in OpenAlex.

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  12. Noncoding RNA in development.Mammalian genome : official journal of the International Mammalian Genome Society · 2008
    Review
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  17. A high frequency of overlapping gene expression in compacted eukaryotic genomes.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  18. Article
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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

3 authors at 1 institution in 1 country.

H G ElmendorfLaboratory of Parasitic Diseases, NIH, Bethesda, MD 20892-0425, USA. hge@georgetown.edu
S M Singer
T E Nash
National Institutes of Health · US

Funding

Molecular Biology Of Giardia And MicrosporidiumZ01AI000350 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI NASH, THEODORE · 1985 to 2005
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6 · The paper itself

Abstract

The protozoan parasite Giardia lamblia synthesizes a diverse and surprisingly abundant array of sterile transcripts unable to code for proteins. Random sampling of cDNAs from two evolutionarily divergent Giardia strains indicates that approximately 20% of cDNAs in the libraries represent polyadenylated sterile transcripts. RNase protection analysis and northern blot hybridization of three sterile transcript loci demonstrated that both the sterile transcript and a complementary mRNA were made in each case, further categorizing these sterile transcripts as antisense transcripts. Investigation of the genomic loci for these same three sterile antisense transcripts showed typical transcription units for the sense transcripts, but still failed to reveal a usable open reading frame for the sterile antisense transcripts. 5'-RACE mapped the transcription start site for one of the sterile antisense transcripts to an AT-rich region, as is typical for GIARDIA: It is unclear whether these sterile transcripts represent errors in transcription or whether they have regulatory functions within the cell, although preliminary investigations failed to reveal evidence for a role in developmental gene regulation. In either case, the presence of such a large pool of sterile antisense transcripts is dramatic evidence of the unusual molecular machinery of the early diverging protist G.lamblia.

Indexed as

AnimalsBase SequenceBlotting, NorthernCysteine EndopeptidasesDNA, ComplementaryDNA, ProtozoanGene Expression Regulation, DevelopmentalGiardia lambliaMolecular Sequence DataNADH, NADPH OxidoreductasesOpen Reading FramesProtein BiosynthesisRNA HelicasesRNA, MessengerRNA, UntranslatedSequence Analysis, DNACysteine EndopeptidasesDNA, ComplementaryDNA, ProtozoanNADH, NADPH OxidoreductasesRNA HelicasesRNA, MessengerRNA, Untranslated

Identifiers

PMID11713317
PMCPMC92544
OpenAlexW2045792319

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.