Evidence map›Paper›PMID 15045028›Full record

ArticlePLoS biology2004

Accelerated evolution of the ASPM gene controlling brain size begins prior to human brain expansion.

Natalay Kouprina, Adam Pavlicek, Ganeshwaran H Mochida, Gregory Solomon, William Gersch, Young-Ho Yoon, Randall Collura, Maryellen Ruvolo, J Carl Barrett, C Geoffrey Woods and 3 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
28.4field-weighted citation impact, top 1% 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

69 citing papers in PubMed, 197 citations in OpenAlex.

  1. Reduced Adult Neurogenesis in Humans Results From a Tradeoff Rather Than Direct Negative Selection.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
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  12. The journey of Zika to the developing brain.Molecular biology reports · 2020
    Review
  13. TAR Cloning: Perspectives for Functional Genomics, Biomedicine, and Biotechnology.Molecular therapy. Methods & clinical development · 2019
    Review
  14. Article
  15. Article
  16. Untangling Cortical Complexity During Development.Journal of experimental neuroscience · 2018
    Review
  17. Article
  18. Article
  19. Review
  20. Review

9 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

13 authors at 7 institutions in 2 countries.

Natalay KouprinaLaboratory of Biosystems and Cancer, National Cancer Institute, Bethesda, Maryland, USA.
Adam Pavlicek
Ganeshwaran H Mochida
Gregory Solomon
William Gersch
Young-Ho Yoon
Randall Collura
Maryellen Ruvolo
J Carl Barrett
C Geoffrey Woods
Christopher A Walsh
Jerzy Jurka
Vladimir Larionov
National Cancer Institute · USBeth Israel Deaconess Medical Center · USGenetic Information Research Institute · USHarvard University Press · USNational Institute of Environmental Health Sciences · USNational Institutes of Health · USSt James's University Hospital · GB

Funding

Study of hereditary prostate cancer and human artificial chromosomesZIABC010413 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LARIONOV, VLADIMIR · 2009 to 2025
$31.5M
Study of hereditary prostate cancer and human artificial chromosomesZ01BC010413 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LARIONOV, VLADIMIR · 2000 to 2008
$2.4M
6 · The paper itself

Abstract

Primary microcephaly (MCPH) is a neurodevelopmental disorder characterized by global reduction in cerebral cortical volume. The microcephalic brain has a volume comparable to that of early hominids, raising the possibility that some MCPH genes may have been evolutionary targets in the expansion of the cerebral cortex in mammals and especially primates. Mutations in ASPM, which encodes the human homologue of a fly protein essential for spindle function, are the most common known cause of MCPH. Here we have isolated large genomic clones containing the complete ASPM gene, including promoter regions and introns, from chimpanzee, gorilla, orangutan, and rhesus macaque by transformation-associated recombination cloning in yeast. We have sequenced these clones and show that whereas much of the sequence of ASPM is substantially conserved among primates, specific segments are subject to high Ka/Ks ratios (nonsynonymous/synonymous DNA changes) consistent with strong positive selection for evolutionary change. The ASPM gene sequence shows accelerated evolution in the African hominoid clade, and this precedes hominid brain expansion by several million years. Gorilla and human lineages show particularly accelerated evolution in the IQ domain of ASPM. Moreover, ASPM regions under positive selection in primates are also the most highly diverged regions between primates and nonprimate mammals. We report the first direct application of TAR cloning technology to the study of human evolution. Our data suggest that evolutionary selection of specific segments of the ASPM sequence strongly relates to differences in cerebral cortical size.

Indexed as

Biological EvolutionAnimalsChlorocebus aethiopsCloning, MolecularConserved SequenceCOS CellsDNA PrimersEvolution, MolecularExonsGene DeletionGorilla gorillaHumansIntronsMacaca mulattaMiceModels, GeneticASPM protein, humanDNA PrimersNerve Tissue Proteins

Identifiers

PMID15045028
PMCPMC374243
OpenAlexW1967536597

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.