Hereditary spastic paraplegia - childhood onset

Gene: BCAS3

Green List (high evidence)

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

3 reviews

Sarah Leigh (Genomics England Curator)

The rating of this gene has been updated following NHS Genomic Medicine Serviceapproval.
Created: 14 Mar 2022, 1:30 p.m. | Last Modified: 14 Mar 2022, 1:30 p.m.
Panel Version: 2.130

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 Green
  • Literature
  • Syndromic neurodevelopmental disorder
Clinvar variants
Variants in BCAS3
Panels with this gene

History Filter Activity

14 Mar 2022, Gel status: 3

Removed Tag

Ivone Leong (Genomics England Curator)

Tag Q2_21_rating was removed from gene: BCAS3.

14 Mar 2022, Gel status: 3

Added New Source, Status Update

Ivone Leong (Genomics England Curator)

Source Expert Review Green was added to BCAS3. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)

23 Jun 2021, Gel status: 2

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

Arina Puzriakova (Genomics England Curator)

gene: BCAS3 was added gene: BCAS3 was added to Hereditary spastic paraplegia - childhood onset. Sources: Expert Review Amber,Literature Q2_21_rating tags were added to gene: BCAS3. 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