Evidence map›Paper›PMID 31087184›Full record

ArticleHuman genetics2019

Paired involvement of human-specific Olduvai domains and NOTCH2NL genes in human brain evolution.

Ian T Fiddes, Alex A Pollen, Jonathan M Davis, James M Sikela

Open access · hybridAbstract read
In one paragraph

Article in Human genetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
6.1field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Evolutionary Restructuring and Systematic Review of theJournal of developmental biology · 2026
    Review
  6. Article
  7. Review
  8. Article
  9. A dyad of human-specificScience advances · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Proteolytic activation of human-specific Olduvai domains by the furin protease.International journal of biological macromolecules · 2023
    Article
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

4 authors at 3 institutions in 1 country.

Ian T Fiddes10X Genomics, Pleasanton, CA, USA.
Alex A PollenDepartment of Neurology and the Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research at the University of California, San Francisco, San Francisco, CA, USA.
Jonathan M DavisDepartment of Biochemistry and Molecular Genetics, Human Medical Genetics and Genomics Program and Neuroscience Program, University of Colorado School of Medicine, Aurora, CO, 80045, USA.
James M SikelaDepartment of Biochemistry and Molecular Genetics, Human Medical Genetics and Genomics Program and Neuroscience Program, University of Colorado School of Medicine, Aurora, CO, 80045, USA. james.sikela@ucdenver.edu.
University of Colorado Denver · US10X Genomics (United States) · USBroad Center · US

Funding

Investigation of DUF1220 domains in human brain function and diseaseR01MH108684 · NIMH · UNIVERSITY OF COLORADO DENVER · PI SIKELA, JAMES M · 2016 to 2020
$1.9M
NIH HHS MH108684NIMH NIH HHS R01 MH108684
6 · The paper itself

Abstract

Sequences encoding Olduvai (DUF1220) protein domains show the largest human-specific increase in copy number of any coding region in the genome and have been linked to human brain evolution. Most human-specific copies of Olduvai (119/165) are encoded by three NBPF genes that are adjacent to three human-specific NOTCH2NL genes that have been shown to promote cortical neurogenesis. Here, employing genomic, phylogenetic, and transcriptomic evidence, we show that these NOTCH2NL/NBPF gene pairs evolved jointly, as two-gene units, very recently in human evolution, and are likely co-regulated. Remarkably, while three NOTCH2NL paralogs were added, adjacent Olduvai sequences hyper-amplified, adding 119 human-specific copies. The data suggest that human-specific Olduvai domains and adjacent NOTCH2NL genes may function in a coordinated, complementary fashion to promote neurogenesis and human brain expansion in a dosage-related manner.

Indexed as

Biological EvolutionGenome, HumanBrainCarrier ProteinsGenomicsHumansPhylogenyProtein DomainsReceptor, Notch2Carrier ProteinsNBPF1 protein, humanNOTCH2 protein, humanReceptor, Notch2

Identifiers

PMID31087184
PMCPMC6611739
OpenAlexW2945356154

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.