rs1035531839
Variant names:
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_ModerateBP6_ModerateBP7
The NM_001127222.2(CACNA1A):c.2778G>A(p.Gly926Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,435,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
CACNA1A
NM_001127222.2 synonymous
NM_001127222.2 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.0520
Genes affected
CACNA1A (HGNC:1388): (calcium voltage-gated channel subunit alpha1 A) Voltage-dependent calcium channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas, the others act as auxiliary subunits regulating this activity. The distinctive properties of the calcium channel types are related primarily to the expression of a variety of alpha-1 isoforms, alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1A subunit, which is predominantly expressed in neuronal tissue. Mutations in this gene are associated with 2 neurologic disorders, familial hemiplegic migraine and episodic ataxia 2. This gene also exhibits polymorphic variation due to (CAG)n-repeats. Multiple transcript variants encoding different isoforms have been found for this gene. In one set of transcript variants, the (CAG)n-repeats occur in the 3' UTR, and are not associated with any disease. But in another set of variants, an insertion extends the coding region to include the (CAG)n-repeats which encode a polyglutamine tract. Expansion of the (CAG)n-repeats from the normal 4-18 to 21-33 in the coding region is associated with spinocerebellar ataxia 6. [provided by RefSeq, Jul 2016]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 19-13298855-C-T is Benign according to our data. Variant chr19-13298855-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 542836.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.052 with no splicing effect.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CACNA1A | ENST00000360228.11 | c.2778G>A | p.Gly926Gly | synonymous_variant | Exon 19 of 47 | 1 | NM_001127222.2 | ENSP00000353362.5 | ||
CACNA1A | ENST00000638029.1 | c.2790G>A | p.Gly930Gly | synonymous_variant | Exon 19 of 48 | 5 | ENSP00000489829.1 | |||
CACNA1A | ENST00000573710.7 | c.2784G>A | p.Gly928Gly | synonymous_variant | Exon 19 of 47 | 5 | ENSP00000460092.3 | |||
CACNA1A | ENST00000635727.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 47 | 5 | ENSP00000490001.1 | |||
CACNA1A | ENST00000637769.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 47 | 1 | ENSP00000489778.1 | |||
CACNA1A | ENST00000636012.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 46 | 5 | ENSP00000490223.1 | |||
CACNA1A | ENST00000637736.1 | c.2640G>A | p.Gly880Gly | synonymous_variant | Exon 18 of 46 | 5 | ENSP00000489861.1 | |||
CACNA1A | ENST00000636389.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 47 | 5 | ENSP00000489992.1 | |||
CACNA1A | ENST00000637432.1 | c.2790G>A | p.Gly930Gly | synonymous_variant | Exon 19 of 48 | 5 | ENSP00000490617.1 | |||
CACNA1A | ENST00000636549.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 48 | 5 | ENSP00000490578.1 | |||
CACNA1A | ENST00000637927.1 | c.2784G>A | p.Gly928Gly | synonymous_variant | Exon 19 of 47 | 5 | ENSP00000489715.1 | |||
CACNA1A | ENST00000635895.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 47 | 5 | ENSP00000490323.1 | |||
CACNA1A | ENST00000638009.2 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 47 | 1 | ENSP00000489913.1 | |||
CACNA1A | ENST00000637276.1 | c.2781G>A | p.Gly927Gly | synonymous_variant | Exon 19 of 46 | 5 | ENSP00000489777.1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD3 exomes AF: 0.00000479 AC: 1AN: 208808Hom.: 0 AF XY: 0.00000857 AC XY: 1AN XY: 116664
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GnomAD4 exome AF: 0.00000139 AC: 2AN: 1435006Hom.: 0 Cov.: 32 AF XY: 0.00000140 AC XY: 1AN XY: 713570
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GnomAD4 genome Cov.: 33
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Episodic ataxia type 2;C4310716:Developmental and epileptic encephalopathy, 42 Benign:1
Nov 19, 2017
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at