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| Early onset or syndromic epilepsy v9.68 | SEC31A | Ida Ertmanska Tag watchlist was removed from gene: SEC31A. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.68 | SEC31A |
Ida Ertmanska changed review comment from: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. Parents confirmed to be consanguineous, Arab ethnicity. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage.; to: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp) - variant not in gnomAD v4.1.1. Unaffected parents confirmed het. Parents confirmed to be consanguineous, Arab ethnicity. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant - not in gnomAD v4.1.1. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage. |
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| Early onset or syndromic epilepsy v9.68 | SEC31A |
Ida Ertmanska changed review comment from: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. Parents confirmed to be consanguineous. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage.; to: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. Parents confirmed to be consanguineous, Arab ethnicity. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage. |
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| Early onset or syndromic epilepsy v9.68 | SEC31A |
Ida Ertmanska changed review comment from: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage.; to: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. Parents confirmed to be consanguineous. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage. |
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| Early onset or syndromic epilepsy v9.68 | SEC31A |
Ida Ertmanska changed review comment from: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness and optic nerve atrophy with no eye fixation. Focal and generalised tonic-clonic seizures were seen from birth. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage.; to: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness, optic nerve atrophy with no eye fixation, bilateral cataracts, microcephaly, and agenesis of CC. Focal and generalised tonic-clonic seizures were seen from birth. Both individuals died before age 4 years. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage. |
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| Early onset or syndromic epilepsy v9.68 | SEC31A | Ida Ertmanska edited their review of gene: SEC31A: Changed publications to: 30464055, 39725565, 40508110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.68 | SEC31A |
Ida Ertmanska changed review comment from: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het.; to: PMID: 39725565 Almontashiri et al., 2025 Female proband; parents are first cousins. IUGR and multiple congenital anomalies were seen on the antenatal scan. She was born very small, with dysmorphic facial features. She had hypotonia with hyperreflexia, but no seizures. Head ultrasound revealed absent CC and an interhemispheric cyst. She had short bowed limbs, contractures, Wormian skull bones, shortening of the long bones, and microcephaly. She died at 15 days old due to bradycardia. Solo WES revealed a homozygous SEC31A splice variant c.1435-1G>A. Splice AI score is Splice-Altering / strong (1) for this variant. RT-PCR showed exon skipping and overall reduction in SEC31A expression. PMID: 40508110 AlTassan et al., 2025 Report of a 5yo male proband with global developmental delay, seizure disorder, hypotonia, spasticity, dysphagia, dysmorphic features, and bilateral hearing loss. Growth parameters indicated microcephaly, failure to thrive, and short stature. He was born to consanguineous parents. WES and WGS showed a homozygous SEC31A variant (c.1359C>G, p.Cys453Trp). Unaffected parents confirmed het. PMID: 30464055 Halperin et al., 2018 2 Bedouin sibs from a consanguineous family. The syndromic presenation included IUGR, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness and optic nerve atrophy with no eye fixation. Focal and generalised tonic-clonic seizures were seen from birth. Seq method: homozygosity mapping, WES. Both affected individuals were homozygous for the SEC31A: c.2776_2777dup, p.Ala927Thrfs*76 variant. Functional evidence: Drosophila sec31a -/- null model showed early embryonic lethality. Knockdown of sec31a with RNAi in the eye yielded flies with severe eye phenotypes (disorganised ommatids). Brain-specific knockdown: larvae appeared to develop normally until death in the third instar larvae stage. |
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| Early onset or syndromic epilepsy v9.68 | SEC31A | Ida Ertmanska Phenotypes for gene: SEC31A were changed from Neurodevelopmental disorder with spastic quadriplegia, optic atrophy, seizures, and structural brain anomalies 618651 to ?Halperin-Birk syndrome, OMIM:618651; neurodevelopmental disorder with spastic quadriplegia, optic atrophy, seizures, and structural brain anomalies, MONDO:0032849 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.67 | SEC31A | Ida Ertmanska Publications for gene: SEC31A were set to 30464055; 39725565; 40508110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.67 | SEC31A | Ida Ertmanska Publications for gene: SEC31A were set to 30464055 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.66 | SEC31A | Ida Ertmanska Classified gene: SEC31A as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.66 | SEC31A | Ida Ertmanska Gene: sec31a has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v9.65 | SEC31A | Ida Ertmanska reviewed gene: SEC31A: Rating: AMBER; Mode of pathogenicity: None; Publications: 39725565, 40508110; Phenotypes: ?Halperin-Birk syndrome, OMIM:618651, neurodevelopmental disorder with spastic quadriplegia, optic atrophy, seizures, and structural brain anomalies, MONDO:0032849; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.128 | SEC31A |
Sarah Leigh changed review comment from: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. One homozygous terminating variant reported in sibs of consanguineous Bedouin parents, together with a Drosophila model in which loss of sec31a was embryonically lethal and associated with defects in eye and brain development, consistent with abnormal neurodevelopment. Sources: Literature; to: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. One homozygous terminating variant reported in sibs of consanguineous Bedouin parents, together with a Drosophila model in which loss of sec31a was embryonically lethal and associated with defects in eye and brain development, consistent with abnormal neurodevelopment. Sources: Literature |
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| Early onset or syndromic epilepsy v2.122 | SEC31A |
Sarah Leigh gene: SEC31A was added gene: SEC31A was added to Genetic epilepsy syndromes. Sources: Literature watchlist tags were added to gene: SEC31A. Mode of inheritance for gene: SEC31A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SEC31A were set to 30464055 Phenotypes for gene: SEC31A were set to Neurodevelopmental disorder with spastic quadriplegia, optic atrophy, seizures, and structural brain anomalies 618651 Review for gene: SEC31A was set to AMBER Added comment: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. One homozygous terminating variant reported in sibs of consanguineous Bedouin parents, together with a Drosophila model in which loss of sec31a was embryonically lethal and associated with defects in eye and brain development, consistent with abnormal neurodevelopment. Sources: Literature |
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