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Intellectual disability

Gene: BCAS3

Amber List (moderate evidence)

BCAS3 (BCAS3, microtubule associated cell migration factor)
EnsemblGeneIds (GRCh38): ENSG00000141376
EnsemblGeneIds (GRCh37): ENSG00000141376
OMIM: 607470, Gene2Phenotype
BCAS3 is in 2 panels

2 reviews

Arina Puzriakova (Genomics England Curator)

Comment on list classification: New gene added by Zornitza Stark (Australian Genomics). There is sufficient evidence to promote this gene to Green at the next GMS panel update (see details below).
Hengel et al. 2021 (PMID: 34022130) report 8 unrelated families, all with different biallelic variants in the BCAS3 gene. All affected individuals (15 total, +1 additional proband but with unphased variants but consistent phenotype) had severe GDD and ID, with 10 subjects having minimal vocabulary and 4 never learning to speak. All probands had a severe motor disorder with pyramidal tract involvement resulting in hyperreflexia and spasticity of the lower limbs (15/15). Other variable features observed in the cohort include microcephaly, short stature, seizures, and dysmorphic facial features.
Created: 23 Jun 2021, 10:26 a.m. | Last Modified: 23 Jun 2021, 10:26 a.m.
Panel Version: 3.1143

Zornitza Stark (Australian Genomics)

Green List (high evidence)

15 individuals from eight unrelated families with germline bi-allelic loss-of-function variants in BCAS3. All probands share a global developmental delay accompanied by pyramidal tract involvement, microcephaly, short stature, strabismus, dysmorphic facial features, and seizures. Patient fibroblasts confirmed absence of BCAS3 protein.
Sources: Literature
Created: 11 Jun 2021, 10:48 a.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Syndromic neurodevelopmental disorder



Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
  • Expert Review Amber
  • Syndromic neurodevelopmental disorder
Clinvar variants
Variants in BCAS3
Panels with this gene

History Filter Activity

23 Jun 2021, Gel status: 2

Added Tag

Arina Puzriakova (Genomics England Curator)

Tag Q2_21_rating tag was added to gene: BCAS3.

23 Jun 2021, Gel status: 2

Entity classified by Genomics England curator

Arina Puzriakova (Genomics England Curator)

Gene: bcas3 has been classified as Amber List (Moderate Evidence).

11 Jun 2021, Gel status: 0

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

Zornitza Stark (Australian Genomics)

gene: BCAS3 was added gene: BCAS3 was added to Intellectual disability. Sources: Literature Mode of inheritance for gene: BCAS3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BCAS3 were set to 34022130 Phenotypes for gene: BCAS3 were set to Syndromic neurodevelopmental disorder Review for gene: BCAS3 was set to GREEN