Evidence map›Paper›PMID 32126975›Full record

ArticleBMC genomics2020

Expert curation of the human and mouse olfactory receptor gene repertoires identifies conserved coding regions split across two exons.

If H A Barnes, Ximena Ibarra-Soria, Stephen Fitzgerald, Jose M Gonzalez, Claire Davidson, Matthew P Hardy, Deepa Manthravadi, Laura Van Gerven, Mark Jorissen, Zhen Zeng and 5 more

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.7field-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

29 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
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  5. Glomeruli of the Mouse Olfactory Bulb: Numbers, Sizes, Shapes.The European journal of neuroscience · 2025
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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

15 authors at 7 institutions in 4 countries.

If H A BarnesEuropean Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK. if@ebi.ac.uk.ORCID http://orcid.org/0000-0001-9303-4610
Ximena Ibarra-SoriaCancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK. ximena.ibarra@cruk.cam.ac.uk.
Stephen FitzgeraldWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK.
Jose M GonzalezEuropean Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
Claire DavidsonEuropean Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
Matthew P HardyEuropean Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
Deepa ManthravadiBrandeis University, 415 South Street, Waltham, MA, 02453, USA.
Laura Van GervenDepartment of ENT-HNS, UZ Leuven, Herestraat 49, 3000, Leuven, Belgium.
Mark JorissenDepartment of ENT-HNS, UZ Leuven, Herestraat 49, 3000, Leuven, Belgium.
Zhen ZengMax Planck Research Unit for Neurogenetics, Max von-Laue-Strasse 4, 60438, Frankfurt, Germany.
Mona KhanMax Planck Research Unit for Neurogenetics, Max von-Laue-Strasse 4, 60438, Frankfurt, Germany.
Peter MombaertsMax Planck Research Unit for Neurogenetics, Max von-Laue-Strasse 4, 60438, Frankfurt, Germany.
Jennifer HarrowELIXIR, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
Darren W LoganWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK.
Adam FrankishEuropean Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK. frankish@ebi.ac.uk.
European Bioinformatics Institute · GBMax Planck Research Unit for Neurogenetics · DEUniversitair Ziekenhuis Leuven · BEBrandeis University · USMonell Chemical Senses Center · USUniversity of Cambridge · GBWellcome Sanger Institute · GB

Funding

GENCODE Resource ProjectU41HG007234 · NHGRI · SANGER INSTITUTE · PI FLICEK, PAUL · 2013 to 2020
$20.3M
NHGRI NIH HHS 2U41HG007234NHGRI NIH HHS U41 HG007234
6 · The paper itself

Abstract

backgroundOlfactory receptor (OR) genes are the largest multi-gene family in the mammalian genome, with 874 in human and 1483 loci in mouse (including pseudogenes). The expansion of the OR gene repertoire has occurred through numerous duplication events followed by diversification, resulting in a large number of highly similar paralogous genes. These characteristics have made the annotation of the complete OR gene repertoire a complex task. Most OR genes have been predicted in silico and are typically annotated as intronless coding sequences.

resultsHere we have developed an expert curation pipeline to analyse and annotate every OR gene in the human and mouse reference genomes. By combining evidence from structural features, evolutionary conservation and experimental data, we have unified the annotation of these gene families, and have systematically determined the protein-coding potential of each locus. We have defined the non-coding regions of many OR genes, enabling us to generate full-length transcript models. We found that 13 human and 41 mouse OR loci have coding sequences that are split across two exons. These split OR genes are conserved across mammals, and are expressed at the same level as protein-coding OR genes with an intronless coding region. Our findings challenge the long-standing and widespread notion that the coding region of a vertebrate OR gene is contained within a single exon.

conclusionsThis work provides the most comprehensive curation effort of the human and mouse OR gene repertoires to date. The complete annotation has been integrated into the GENCODE reference gene set, for immediate availability to the research community.

Indexed as

Conserved SequenceQuantitative Trait LociAnimalsDatabases, GeneticData CurationExonsGenetic LociGenome, HumanHumansMicePseudogenesReceptors, OdorantReceptors, OdorantAnnotationCurationHumanMouseOlfactory receptor gene

Identifiers

PMID32126975
PMCPMC7055050
OpenAlexW3011496678

What OpenQuestion holds

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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.