Evidence map›Paper›PMID 27737959›Full record

ArticleGenes & development2016

Mutations in genes encoding condensin complex proteins cause microcephaly through decatenation failure at mitosis.

Carol-Anne Martin, Jennie E Murray, Paula Carroll, Andrea Leitch, Karen J Mackenzie, Mihail Halachev, Ahmed E Fetit, Charlotte Keith, Louise S Bicknell, Adeline Fluteau and 14 more

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Genes & development, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
–field-weighted citation impact
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

91 citing papers in PubMed, 149 citations in OpenAlex.

  1. Review
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  10. Common and rare variant genetic contributions in African Americans with autism.medRxiv : the preprint server for health sciences · 2025
    Article
  11. Domain specific phenotypic expansion associated with variants inmedRxiv : the preprint server for health sciences · 2025
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Structural Maintenance of Chromosomes Complexes.Methods in molecular biology (Clifton, N.J.) · 2025
    Review
  18. Article
  19. Article
  20. Review

31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

24 authors at 10 institutions in 5 countries.

Carol-Anne MartinMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Jennie E MurrayMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Paula CarrollMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Andrea LeitchMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Karen J MackenzieMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Mihail HalachevMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Ahmed E FetitMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Charlotte KeithSouth East Scotland Cytogenetics Service, Western General Hospital, Edinburgh EH4 2XU, United Kingdom.
Louise S BicknellMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Adeline FluteauMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Philippe GautierMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Emma A HallMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Shelagh JossWest of Scotland Genetic Service, Southern General Hospital, Glasgow G51 4TF, United Kingdom.
Gabriela SoaresCentro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar do Porto, 4099-028 Porto, Portugal.
João SilvaInstituto de Biologia Molecular e Celular (IBMC), 4150 Porto, Portugal.
Michael B BoberDivision of Genetics, Department of Pediatrics, A.I. duPont Hospital for Children, Wilmington, Delaware 19803, USA.
Angela DukerDivision of Genetics, Department of Pediatrics, A.I. duPont Hospital for Children, Wilmington, Delaware 19803, USA.
Carol A WiseSarah M. and Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas 75219, USA.
Alan J QuigleyDepartment of Radiology, Royal Hospital for Sick Children, Edinburgh EH9 1LF, United Kingdom.
Shubha R PhadkeSanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh 226014, India.
Deciphering Developmental Disorders Study
Andrew J WoodMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Paola VagnarelliBiosciences, Research Institute for Health and Environment, Brunel University, London UB8 3PH, United Kingdom.
Andrew P JacksonMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
Institute of Genetics and Cancer · GBCommunity Health Systems - Dupont Hospital · USCentro de Genética Clínica · PTi3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto · PTRoyal Hospital for Children · GBSanjay Gandhi Post Graduate Institute of Medical Sciences · INSouthern General Hospital · GBTexas Scottish Rite Hospital for Children · USWellcome Sanger Institute · GBWestern General Hospital · GB

Funding

European Research Council 281847Medical Research Council MC_PC_U127580972Wellcome Trust
6 · The paper itself

Abstract

Compaction of chromosomes is essential for accurate segregation of the genome during mitosis. In vertebrates, two condensin complexes ensure timely chromosome condensation, sister chromatid disentanglement, and maintenance of mitotic chromosome structure. Here, we report that biallelic mutations in NCAPD2, NCAPH, or NCAPD3, encoding subunits of these complexes, cause microcephaly. In addition, hypomorphic Ncaph2 mice have significantly reduced brain size, with frequent anaphase chromatin bridge formation observed in apical neural progenitors during neurogenesis. Such DNA bridges also arise in condensin-deficient patient cells, where they are the consequence of failed sister chromatid disentanglement during chromosome compaction. This results in chromosome segregation errors, leading to micronucleus formation and increased aneuploidy in daughter cells. These findings establish "condensinopathies" as microcephalic disorders, with decatenation failure as an additional disease mechanism for microcephaly, implicating mitotic chromosome condensation as a key process ensuring mammalian cerebral cortex size.

Indexed as

Adenosine TriphosphatasesAneuploidyAnimalsCatenanesCell Cycle ProteinsCells, CulturedChromosomal InstabilityChromosome SegregationDNA-Binding ProteinsFemaleHumansMaleMiceMice, Inbred C57BLMicrocephalyMicronuclei, Chromosome-DefectiveAdenosine TriphosphatasesCatenanesCell Cycle Proteinscondensin complexesDNA-Binding ProteinsMultiprotein ComplexesNcaph2 protein, mouseNuclear Proteinscondensindecatenationmicrocephalyneurodevelopment

Identifiers

PMID27737959
PMCPMC5088565
OpenAlexW2529947402

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.