Evidence map›Paper›PMID 21573114›Full record

ArticlePloS one2011

Protocol dependence of sequencing-based gene expression measurements.

Tal Raz, Philipp Kapranov, Doron Lipson, Stan Letovsky, Patrice M Milos, John F Thompson

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 99 citations in OpenAlex.

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  6. Liquid biopsy: early and accurate diagnosis of brain tumor.Journal of cancer research and clinical oncology · 2022
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  16. ΔBiochimica et biophysica acta. Molecular and cell biology of lipids · 2018
    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

6 authors at 1 institution in 1 country.

Tal RazApplications, Methods, and Collaborations Group, Helicos BioSciences, Cambridge, Massachusetts, United States of America.
Philipp Kapranov
Doron Lipson
Stan Letovsky
Patrice M Milos
John F Thompson
Helicos Biosciences (United States) · US

Funding

Providing the $1000 genome via improved single molecule sequencingRC2HG005598 · NHGRI · HELICOS BIOSCIENCE CORPORATION · PI THOMPSON, JOHN FENTON · 2009 to 2010
$2.9M
High Accuracy Single Molecule DNA Sequencing by SynthesisR01HG004144 · NHGRI · HELICOS BIOSCIENCE CORPORATION · PI THOMPSON, JOHN FENTON · 2006 to 2008
$2.0M
NHGRI NIH HHS R01 HG004144NHGRI NIH HHS RC2 HG005598
6 · The paper itself

Abstract

RNA Seq provides unparalleled levels of information about the transcriptome including precise expression levels over a wide dynamic range. It is essential to understand how technical variation impacts the quality and interpretability of results, how potential errors could be introduced by the protocol, how the source of RNA affects transcript detection, and how all of these variations can impact the conclusions drawn. Multiple human RNA samples were used to assess RNA fragmentation, RNA fractionation, cDNA synthesis, and single versus multiple tag counting. Though protocols employing polyA RNA selection generate the highest number of non-ribosomal reads and the most precise measurements for coding transcripts, such protocols were found to detect only a fraction of the non-ribosomal RNA in human cells. PolyA RNA excludes thousands of annotated and even more unannotated transcripts, resulting in an incomplete view of the transcriptome. Ribosomal-depleted RNA provides a more cost-effective method for generating complete transcriptome coverage. Expression measurements using single tag counting provided advantages for assessing gene expression and for detecting short RNAs relative to multi-read protocols. Detection of short RNAs was also hampered by RNA fragmentation. Thus, this work will help researchers choose from among a range of options when analyzing gene expression, each with its own advantages and disadvantages.

Indexed as

BrainCell Line, TumorDNA, ComplementaryHumansLiverSequence Analysis, RNADNA, Complementary

Identifiers

PMID21573114
PMCPMC3089619
OpenAlexW2004869583

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.