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Fetal anomalies

Gene: NCAPD2

Amber List (moderate evidence)
NCAPD2 (non-SMC condensin I complex subunit D2)
EnsemblGeneIds (GRCh38): ENSG00000010292
EnsemblGeneIds (GRCh37): ENSG00000010292
OMIM: 615638, Gene2Phenotype
NCAPD2 is in 4 panels

2 reviews

Achchuthan Shanmugasundram (Genomics England Curator)

This gene and phenotype were reviewed during meetings between November 2023 & July 2024. The meetings included representatives of the North Thames and Central & South R21 testing GLHs and from the R21 Clinical Oversight Group. Clinical review and curation was performed by Natalie Chandler, Alison Male and Lyn Chitty (North Thames GLH), Stephanie Allen, Natalie Bibb, Esther Kinning and Denise Williams (Central & South GLH) and Natalie Canham, Anna De Burca and Samantha Doyle R21 Clinical Oversight Group.
Created: 29 Aug 2024, 8:33 p.m. | Last Modified: 29 Aug 2024, 8:33 p.m.
Panel Version: 4.36
Created: 29 Aug 2024, 8:33 p.m.
Last Modified: 29 Aug 2024, 8:33 p.m.
Panel version: 4.36

Natalie Chandler (North Thames GLH)

I don't know

Green in severe microcephaly panel only. PMID:27737959 (2016) - A homozygous splice site variant (c.4120+2T>C, p.Asp1374Glyfs*29) in NCAPD2 was detected in a 3-year-old male with severe microcephaly (OFC -11.9 SD), severe ID, autistic-like behaviours, and no speech. The variant was found in a heterozygous state in both unaffected parents and was not present in the ExAC database. Functional studies indicated that the variant disrupted condensin-dependent mitotic chromosome integrity, providing supporting evidence for pathogenicity. PMID:28097321 (2017) - In two affected cousins from a consanguineous family with mild ID, intrauterine growth retardation, short stature, and microcephaly. Homozygous missense variants were found in NCAPD2 (c.23T>C, p.Phe8Ser), but also in ENO2 (c.710C>T, p.Thr237Met). Variants segregated with disease in the family, but no further functional studies were undertaken of the variants or patient cells. PMID:31056748 (2019) - In a 13-year-old female with severe microcephaly (OFC < -3), mild ID (IQ 59), poor learning performance, sloping forehead and reduced cerebral cortex size, exome sequencing revealed a homozygous variant in NCAPD2 (c.3477+2T>C, p.Gly1160Valfs*16). Progressive microcephaly was also apparent in a sibling of the proband, a male fetus which was terminated at 34 weeks of pregnancy. The same homozygous variant was identified in the fetus, while parents were heterozygotes and an unaffected brother was homozygous for the other allele. No further functional studies of the variant or patient cells were performed.Suggests prenatal onset microceephaly but only feature. Amber pending review of eligibility criteria for isolated microcephaly.
Created: 29 Aug 2024, 8:07 p.m. | Last Modified: 29 Aug 2024, 8:07 p.m.
Panel Version: 4.35

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Microcephaly 21, primary, autosomal recessive, OMIM:617983

Publications

Created: 29 Aug 2024, 8:07 p.m.
Last Modified: 29 Aug 2024, 8:07 p.m.
Panel version: 4.35

Details

Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
Sources
  • NHS GMS
  • Expert Review Amber
Phenotypes
  • Microcephaly 21, primary, autosomal recessive, OMIM:617983
OMIM
615638
Clinvar variants
Variants in NCAPD2
Penetrance
None
Publications
Panels with this gene

History Filter Activity

29 Aug 2024, Gel status: 2

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes

Achchuthan Shanmugasundram (Genomics England Curator)

gene: NCAPD2 was added gene: NCAPD2 was added to Fetal anomalies. Sources: Expert Review Amber,NHS GMS Mode of inheritance for gene: NCAPD2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NCAPD2 were set to 27737959; 28097321; 31056748 Phenotypes for gene: NCAPD2 were set to Microcephaly 21, primary, autosomal recessive, OMIM:617983