rs1456597171

Positions:

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001127222.2(CACNA1A):c.6435C>T(p.Pro2145Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000786 in 1,399,894 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: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000080 ( 0 hom. )

Consequence

CACNA1A
NM_001127222.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -14.0

Variant links:

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]

CACNA1A links:

CACNA1A (HGNC:):

CACNA1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant 19-13209403-G-A is Benign according to our data. Variant chr19-13209403-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 476270.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-14 with no splicing effect.

BS2

High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNA1A	NM_001127222.2 linkuse as main transcript	c.6435C>T	p.Pro2145Pro	synonymous_variant	45/47	ENST00000360228.11	NP_001120694.1	O00555-8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CACNA1A	ENST00000360228.11 linkuse as main transcript	c.6435C>T	p.Pro2145Pro	synonymous_variant	45/47	1	NM_001127222.2	ENSP00000353362.5	O00555-8
CACNA1A	ENST00000638029.1 linkuse as main transcript	c.6453C>T	p.Pro2151Pro	synonymous_variant	46/48	5		ENSP00000489829.1	A0A087WW63
CACNA1A	ENST00000573710.7 linkuse as main transcript	c.6441C>T	p.Pro2147Pro	synonymous_variant	45/47	5		ENSP00000460092.3	A0A1C7CYY9
CACNA1A	ENST00000635727.1 linkuse as main transcript	c.6438C>T	p.Pro2146Pro	synonymous_variant	45/47	5		ENSP00000490001.1	A0A1B0GU81
CACNA1A	ENST00000637769.1 linkuse as main transcript	c.6438C>T	p.Pro2146Pro	synonymous_variant	45/47	1		ENSP00000489778.1	A0A1B0GTN7
CACNA1A	ENST00000636012.1 linkuse as main transcript	c.6402C>T	p.Pro2134Pro	synonymous_variant	44/46	5		ENSP00000490223.1	A0A1B0GUS3
CACNA1A	ENST00000637736.1 linkuse as main transcript	c.6297C>T	p.Pro2099Pro	synonymous_variant	44/46	5		ENSP00000489861.1	A0A1B0GTW2
CACNA1A	ENST00000636389.1 linkuse as main transcript	c.6438C>T	p.Pro2146Pro	synonymous_variant	45/47	5		ENSP00000489992.1	A0A1B0GU74
CACNA1A	ENST00000637432.1 linkuse as main transcript	c.6453C>T	p.Pro2151Pro	synonymous_variant	46/48	5		ENSP00000490617.1	O00555-2
CACNA1A	ENST00000636549.1 linkuse as main transcript	c.6444C>T	p.Pro2148Pro	synonymous_variant	46/48	5		ENSP00000490578.1	B5TYJ1
CACNA1A	ENST00000637927.1 linkuse as main transcript	c.6441C>T	p.Pro2147Pro	synonymous_variant	45/47	5		ENSP00000489715.1	A0A1B0GTI4
CACNA1A	ENST00000635895.1 linkuse as main transcript	c.6438C>T	p.Pro2146Pro	synonymous_variant	45/47	5		ENSP00000490323.1	A0A384DVW2
CACNA1A	ENST00000638009.2 linkuse as main transcript	c.6438C>T	p.Pro2146Pro	synonymous_variant	45/47	1		ENSP00000489913.1	O00555-3
CACNA1A	ENST00000637276.1 linkuse as main transcript	c.6402C>T	p.Pro2134Pro	synonymous_variant	44/46	5		ENSP00000489777.1	O00555-5
CACNA1A	ENST00000636768.1 linkuse as main transcript	n.*701C>T		non_coding_transcript_exon_variant	9/10	5		ENSP00000490190.2	A0A1B0GUP3
CACNA1A	ENST00000636768.1 linkuse as main transcript	n.*701C>T		3_prime_UTR_variant	9/10	5		ENSP00000490190.2	A0A1B0GUP3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000801

AC:

AN:

1247712

Hom.:

Cov.:

AF XY:

0.00000829

AC XY:

AN XY:

602832

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000321

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000895

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74334

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Episodic ataxia type 2;C4310716:Developmental and epileptic encephalopathy, 42

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 14, 2017

- -

CACNA1A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Oct 15, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

0.015

DANN

Benign

0.93

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over