CACNA1Gcalcium channel, voltage-dependent, T type, alpha 1G subunit
Autism Reports / Total Reports
11 / 30Rare Variants / Common Variants
43 / 8Aliases
CACNA1G, NBR13, Cav3.1, Ca(V)T.1, MGC117234Associated Syndromes
-Chromosome Band
17q21.33Associated Disorders
DD/NDD, ID, EPS, ASDRelevance to Autism
Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (Strom et al., 2010). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (Iossifov et al., 2012).
Molecular Function
Voltage-activated calcium channels
External Links
SFARI Genomic Platforms
Reports related to CACNA1G (30 Reports)
# | Type | Title | Author, Year | Autism Report | Associated Disorders |
---|---|---|---|---|---|
1 | Highly Cited | Inactivation of CACNA1G, a T-type calcium channel gene, by aberrant methylation of its 5' CpG island in human tumors | Toyota M , et al. (1999) | No | - |
2 | Highly Cited | Lack of the burst firing of thalamocortical relay neurons and resistance to absence seizures in mice lacking alpha(1G) T-type Ca(2+) channels | Kim D , et al. (2001) | No | - |
3 | Highly Cited | T-type calcium channel regulation by specific G-protein betagamma subunits | Wolfe JT , et al. (2003) | No | - |
4 | Recent Recommendation | 17Beta-estradiol regulation of the mRNA expression of T-type calcium channel subunits: role of estrogen receptor alpha and estrogen receptor beta | Bosch MA , et al. (2008) | No | - |
5 | Recent Recommendation | Genetic enhancement of thalamocortical network activity by elevating alpha 1g-mediated low-voltage-activated calcium current induces pure absence epilepsy | Ernst WL , et al. (2009) | No | - |
6 | Primary | High-density SNP association study of the 17q21 chromosomal region linked to autism identifies CACNA1G as a novel candidate gene | Strom SP , et al. (2009) | Yes | - |
7 | Recent Recommendation | Three-dimensional structure of CaV3.1: comparison with the cardiac L-type voltage-gated calcium channel monomer architecture | Walsh CP , et al. (2009) | No | - |
8 | Recent Recommendation | Ca(V)3.1 is a tremor rhythm pacemaker in the inferior olive | Park YG , et al. (2010) | No | - |
9 | Support | Exome sequencing of ion channel genes reveals complex profiles confounding personal risk assessment in epilepsy | Klassen T , et al. (2011) | No | - |
10 | Support | De novo gene disruptions in children on the autistic spectrum | Iossifov I , et al. (2012) | Yes | - |
11 | Support | Support for calcium channel gene defects in autism spectrum disorders | Lu AT , et al. (2012) | Yes | - |
12 | Support | The contribution of de novo coding mutations to autism spectrum disorder | Iossifov I et al. (2014) | Yes | - |
13 | Support | Large-scale discovery of novel genetic causes of developmental disorders | Deciphering Developmental Disorders Study (2014) | No | - |
14 | Support | Accelerating novel candidate gene discovery in neurogenetic disorders via whole-exome sequencing of prescreened multiplex consanguineous families | Alazami AM , et al. (2015) | No | - |
15 | Recent Recommendation | A Recurrent Mutation in CACNA1G Alters Cav3.1 T-Type Calcium-Channel Conduction and Causes Autosomal-Dominant Cerebellar Ataxia | Coutelier M , et al. (2015) | No | - |
16 | Recent Recommendation | De Novo Synonymous Mutations in Regulatory Elements Contribute to the Genetic Etiology of Autism and Schizophrenia | Takata A , et al. (2016) | No | - |
17 | Recent Recommendation | Cacna1g is a genetic modifier of epilepsy caused by mutation of voltage-gated sodium channel Scn2a | Calhoun JD , et al. (2016) | No | - |
18 | Positive Association | Meta-analysis of GWAS of over 16,000 individuals with autism spectrum disorder highlights a novel locus at 10q24.32 and a significant overlap with schizophrenia | Autism Spectrum Disorders Working Group of The Psychiatric Genomics Consortium (2017) | Yes | - |
19 | Support | De novo mutation screening in childhood-onset cerebellar atrophy identifies gain-of-function mutations in the CACNA1G calcium channel gene | Chemin J , et al. (2018) | No | DD, ID, epilepsy/seizures, autistic behavior |
20 | Support | Increased diagnostic and new genes identification outcome using research reanalysis of singleton exome sequencing | Bruel AL , et al. (2019) | No | - |
21 | Support | - | Li D et al. (2022) | Yes | - |
22 | Support | - | Viggiano M et al. (2022) | Yes | - |
23 | Recent Recommendation | - | Singh T et al. (2022) | No | - |
24 | Support | - | Zhou X et al. (2022) | Yes | - |
25 | Support | - | Hu C et al. (2023) | Yes | - |
26 | Support | - | Erica Rosina et al. (2024) | No | - |
27 | Support | - | Omri Bar et al. (2024) | Yes | ID |
28 | Support | - | Yasser Al-Sarraj et al. (2024) | Yes | - |
29 | Support | - | Axel Schmidt et al. (2024) | No | - |
30 | Support | - | Ji-Il Kim et al. (2024) | No | - |
Rare Variants (43)
Status | Allele Change | Residue Change | Variant Type | Inheritance Pattern | Parental Transmission | Family Type | PubMed ID | Author, Year |
---|---|---|---|---|---|---|---|---|
c.557G>A | p.Arg186Gln | missense_variant | Unknown | - | - | 34968013 | Li D et al. (2022) | |
T>A | - | splice_site_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
C>T | - | 2KB_upstream_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.4664G>A | p.Arg1555Gln | missense_variant | Unknown | - | - | 37007974 | Hu C et al. (2023) | |
c.3569G>T | p.Arg1190Leu | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.4390C>T | p.Arg1464Trp | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.5240G>A | p.Gly1747Glu | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.6626C>T | p.Pro2209Leu | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.894C>T | p.Cys298%3D | synonymous_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.2881G>A | p.Ala961Thr | missense_variant | De novo | - | - | 29878067 | Chemin J , et al. (2018) | |
c.4591A>G | p.Met1531Val | missense_variant | De novo | - | - | 29878067 | Chemin J , et al. (2018) | |
c.4591A>G | p.Met1531Val | missense_variant | De novo | - | - | 31231135 | Bruel AL , et al. (2019) | |
c.5144G>A | p.Arg1715His | missense_variant | Unknown | - | - | 39039281 | Axel Schmidt et al. (2024) | |
C>G | p.Leu2163Val | missense_variant | Familial | Paternal | - | 35350424 | Viggiano M et al. (2022) | |
G>A | p.Gly1057Asp | missense_variant | Familial | Maternal | - | 35350424 | Viggiano M et al. (2022) | |
c.72C>G | p.Asp24Glu | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.286G>A | p.Val96Met | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.153G>A | p.Leu51= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.31G>T | p.Glu11Ter | stop_gained | De novo | - | Simplex | 38572415 | Yasser Al-Sarraj et al. (2024) | |
c.546C>T | p.Val182= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.915C>T | p.Tyr305= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.561G>A | p.Pro187= | synonymous_variant | De novo | - | Simplex | 25363768 | Iossifov I et al. (2014) | |
c.1345C>T | p.Arg449Cys | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.1556C>T | p.Pro519Leu | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.1464C>T | p.Arg488= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.1770T>C | p.Tyr590= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.1917G>A | p.Gln639= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.561G>A | p.Pro187= | synonymous_variant | De novo | - | Simplex | 22542183 | Iossifov I , et al. (2012) | |
c.481A>T | p.Ile161Phe | missense_variant | Familial | Paternal | - | 35350424 | Viggiano M et al. (2022) | |
c.4759C>T | p.His1587Tyr | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.6109C>T | p.Pro2037Ser | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.6542C>A | p.Ser2181Tyr | missense_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.4142G>A | p.Arg1381Gln | missense_variant | De novo | - | Simplex | 25363768 | Iossifov I et al. (2014) | |
c.4084C>T | p.Leu1362= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.4956C>T | p.Val1652= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.6348G>A | p.Gln2116= | synonymous_variant | Unknown | - | Unknown | 21703448 | Klassen T , et al. (2011) | |
c.623T>C | p.Leu208Pro | missense_variant | De novo | - | Simplex | 38041506 | Erica Rosina et al. (2024) | |
c.1460G>A | p.Arg487His | missense_variant | Familial | Maternal | - | 35350424 | Viggiano M et al. (2022) | |
c.3223G>A | p.Ala1075Thr | missense_variant | Familial | Maternal | Simplex | 38256266 | Omri Bar et al. (2024) | |
c.2573_2582del | p.Leu858ProfsTer60 | frameshift_variant | Unknown | - | - | 39039281 | Axel Schmidt et al. (2024) | |
c.667_669del | p.Phe223del | inframe_deletion | Familial | Both parents | Multiplex | 25558065 | Alazami AM , et al. (2015) | |
c.3599A>G | p.Asn1200Ser | missense_variant | De novo | - | Unknown | 25533962 | Deciphering Developmental Disorders Study (2014) | |
c.5144G>A | p.Arg1715His | missense_variant | Familial | Maternal and paternal | Multi-generational | 26456284 | Coutelier M , et al. (2015) |
Common Variants (8)
Status | Allele Change | Residue Change | Variant Type | Inheritance Pattern | Paternal Transmission | Family Type | PubMed ID | Author, Year |
---|---|---|---|---|---|---|---|---|
c.243-2430T>C | - | intron_variant | - | - | - | 28540026 | Autism Spectrum Disorders Working Group of The Psychiatric Genomics Consortium (2017) | |
c.243-620G>T | T/G | intron_variant | - | - | - | 23241247 | Lu AT , et al. (2012) | |
c.243-3538C>T | T/C | intron_variant | - | - | - | 23241247 | Lu AT , et al. (2012) | |
c.489-56T>G | G/T | intron_variant | - | - | - | 19455149 | Strom SP , et al. (2009) | |
c.1141-29A>G;c.1141-80A>G | A to G | intron_variant | - | - | - | 19455149 | Strom SP , et al. (2009) | |
c.2302-1483A>G;c.2251-1483A>G | G/A | intron_variant | - | - | - | 19455149 | Strom SP , et al. (2009) | |
c.2301+3918A>G;c.2250+3918A>G | A to G | intron_variant | - | - | - | 19455149 | Strom SP , et al. (2009) | |
c.2302-3203C>T;c.2251-3203C>T | T to C | intron_variant | - | - | - | 19455149 | Strom SP , et al. (2009) |
SFARI Gene score
Strong Candidate


Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
Score Delta: Score remained at 2
criteria met
See SFARI Gene'scoring criteriaWe considered a rigorous statistical comparison between cases and controls, yielding genome-wide statistical significance, with independent replication, to be the strongest possible evidence for a gene. These criteria were relaxed slightly for category 2.
4/1/2022

Decreased from 3 to 2
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
10/1/2019

Decreased from 4 to 3
New Scoring Scheme
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
Reports Added
[New Scoring Scheme]7/1/2019

Decreased from 4 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
7/1/2018

Decreased from 4 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
4/1/2017

Decreased from 4 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
Reports Added
[High-density SNP association study of the 17q21 chromosomal region linked to autism identifies CACNA1G as a novel candidate gene.2009] [De novo gene disruptions in children on the autistic spectrum.2012] [Support for calcium channel gene defects in autism spectrum disorders.2012] [Exome sequencing of ion channel genes reveals complex profiles confounding personal risk assessment in epilepsy.2011] [Accelerating novel candidate gene discovery in neurogenetic disorders via whole-exome sequencing of prescreened multiplex consanguineous families.2015] [Large-scale discovery of novel genetic causes of developmental disorders.2014] [Inactivation of CACNA1G, a T-type calcium channel gene, by aberrant methylation of its 5' CpG island in human tumors.1999] [Lack of the burst firing of thalamocortical relay neurons and resistance to absence seizures in mice lacking alpha(1G) T-type Ca(2) channels.2001] [T-type calcium channel regulation by specific G-protein betagamma subunits.2003] [17Beta-estradiol regulation of the mRNA expression of T-type calcium channel subunits: role of estrogen receptor alpha and estrogen receptor beta.2008] [Genetic enhancement of thalamocortical network activity by elevating alpha 1g-mediated low-voltage-activated calcium current induces pure absence e...2009] [Three-dimensional structure of CaV3.1: comparison with the cardiac L-type voltage-gated calcium channel monomer architecture.2009] [Ca(V)3.1 is a tremor rhythm pacemaker in the inferior olive.2010] [A Recurrent Mutation in CACNA1G Alters Cav3.1 T-Type Calcium-Channel Conduction and Causes Autosomal-Dominant Cerebellar Ataxia.2015] [The contribution of de novo coding mutations to autism spectrum disorder2014] [De Novo Synonymous Mutations in Regulatory Elements Contribute to the Genetic Etiology of Autism and Schizophrenia.2016] [Cacna1g is a genetic modifier of epilepsy caused by mutation of voltage-gated sodium channel Scn2a.2016] [Meta-analysis of GWAS of over 16,000 individuals with autism spectrum disorder highlights a novel locus at 10q24.32 and a significant overlap with ...2017]4/1/2016

Decreased from 4 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
Reports Added
[High-density SNP association study of the 17q21 chromosomal region linked to autism identifies CACNA1G as a novel candidate gene.2009] [De novo gene disruptions in children on the autistic spectrum.2012] [Support for calcium channel gene defects in autism spectrum disorders.2012] [Exome sequencing of ion channel genes reveals complex profiles confounding personal risk assessment in epilepsy.2011] [Accelerating novel candidate gene discovery in neurogenetic disorders via whole-exome sequencing of prescreened multiplex consanguineous families.2015] [Large-scale discovery of novel genetic causes of developmental disorders.2014] [Inactivation of CACNA1G, a T-type calcium channel gene, by aberrant methylation of its 5' CpG island in human tumors.1999] [Lack of the burst firing of thalamocortical relay neurons and resistance to absence seizures in mice lacking alpha(1G) T-type Ca(2) channels.2001] [T-type calcium channel regulation by specific G-protein betagamma subunits.2003] [17Beta-estradiol regulation of the mRNA expression of T-type calcium channel subunits: role of estrogen receptor alpha and estrogen receptor beta.2008] [Genetic enhancement of thalamocortical network activity by elevating alpha 1g-mediated low-voltage-activated calcium current induces pure absence e...2009] [Three-dimensional structure of CaV3.1: comparison with the cardiac L-type voltage-gated calcium channel monomer architecture.2009] [Ca(V)3.1 is a tremor rhythm pacemaker in the inferior olive.2010] [A Recurrent Mutation in CACNA1G Alters Cav3.1 T-Type Calcium-Channel Conduction and Causes Autosomal-Dominant Cerebellar Ataxia.2015] [The contribution of de novo coding mutations to autism spectrum disorder2014] [De Novo Synonymous Mutations in Regulatory Elements Contribute to the Genetic Etiology of Autism and Schizophrenia.2016] [Cacna1g is a genetic modifier of epilepsy caused by mutation of voltage-gated sodium channel Scn2a.2016]1/1/2016

Decreased from 4 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
Reports Added
[High-density SNP association study of the 17q21 chromosomal region linked to autism identifies CACNA1G as a novel candidate gene.2009] [De novo gene disruptions in children on the autistic spectrum.2012] [Support for calcium channel gene defects in autism spectrum disorders.2012] [Exome sequencing of ion channel genes reveals complex profiles confounding personal risk assessment in epilepsy.2011] [Accelerating novel candidate gene discovery in neurogenetic disorders via whole-exome sequencing of prescreened multiplex consanguineous families.2015] [Large-scale discovery of novel genetic causes of developmental disorders.2014] [Inactivation of CACNA1G, a T-type calcium channel gene, by aberrant methylation of its 5' CpG island in human tumors.1999] [Lack of the burst firing of thalamocortical relay neurons and resistance to absence seizures in mice lacking alpha(1G) T-type Ca(2) channels.2001] [T-type calcium channel regulation by specific G-protein betagamma subunits.2003] [17Beta-estradiol regulation of the mRNA expression of T-type calcium channel subunits: role of estrogen receptor alpha and estrogen receptor beta.2008] [Genetic enhancement of thalamocortical network activity by elevating alpha 1g-mediated low-voltage-activated calcium current induces pure absence e...2009] [Three-dimensional structure of CaV3.1: comparison with the cardiac L-type voltage-gated calcium channel monomer architecture.2009] [Ca(V)3.1 is a tremor rhythm pacemaker in the inferior olive.2010] [A Recurrent Mutation in CACNA1G Alters Cav3.1 T-Type Calcium-Channel Conduction and Causes Autosomal-Dominant Cerebellar Ataxia.2015] [The contribution of de novo coding mutations to autism spectrum disorder2014]7/1/2015

Decreased from 5 to 4
Description
Located in a linkage region with association not explaining linkage. Genetic association has been found between the CACNA1G gene and autism in the AGRE cohort (PMID 19455149) and a cohort using families from AGRE and AGP (PMID 23241247). Recently, a de novo synonymous variant in this gene was identified in an ASD proband from the Simons Simplex Collection (PMID 22542183). A homozygous in-frame deletion variant in the CACNA1G gene segregated with disease in a consanguineous multiplex family affected by severe intellectual disability (PMID 25558065).
1/1/2015

Decreased from 5 to 5
Description
Located in a linkage region with association not explaining linkage.
7/1/2014

Increased from No data to 5
Description
Located in a linkage region with association not explaining linkage.
4/1/2014

Increased from No data to 5
Description
Located in a linkage region with association not explaining linkage.
Krishnan Probability Score
Score 0.61300357141815
Ranking 149/25841 scored genes
[Show Scoring Methodology]
ExAC Score
Score 0.99999651736233
Ranking 377/18225 scored genes
[Show Scoring Methodology]
Sanders TADA Score
Score 0.94010158668807
Ranking 14446/18665 scored genes
[Show Scoring Methodology]
Larsen Cumulative Evidence Score
Score 13
Ranking 148/461 scored genes
[Show Scoring Methodology]
Zhang D Score
Score 0.10146750835663
Ranking 6107/20870 scored genes
[Show Scoring Methodology]
External PIN Data
Interactome
- Protein Binding
- DNA Binding
- RNA Binding
- Protein Modification
- Direct Regulation
- ASD-Linked Genes
Interaction Table
Interactor Symbol | Interactor Name | Interactor Organism | Interactor Type | Entrez ID | Uniprot ID |
---|---|---|---|---|---|
Cacng6 | calcium channel, voltage-dependent, gamma subunit 6 | Rat | Protein Binding | 140727 | Q8VHW7 |
KCND2 | potassium voltage-gated channel, Shal-related subfamily, member 2 | Human | Protein Binding | 3751 | A4D0V9 |
LEF1 | lymphoid enhancer-binding factor 1 | Human | DNA Binding | 51176 | Q659G9 |