rs199776761

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000719.7(CACNA1C):c.5885G>A(p.Arg1962Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000104 in 1,613,974 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. R1962R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000090 ( 0 hom. )

Consequence

CACNA1C
NM_000719.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.228

Publications

4 publications found

Variant links:

Genes affected

CACNA1C (HGNC:1390): (calcium voltage-gated channel subunit alpha1 C) This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. The alpha-1 subunit consists of 24 transmembrane segments and forms the pore through which ions pass into the cell. The calcium channel consists of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. There are multiple isoforms of each of these proteins, either encoded by different genes or the result of alternative splicing of transcripts. The protein encoded by this gene binds to and is inhibited by dihydropyridine. Alternative splicing results in many transcript variants encoding different proteins. Some of the predicted proteins may not produce functional ion channel subunits. [provided by RefSeq, Oct 2012]

CACNA1C links:

ITFG2-AS1 (HGNC:53128): (ITFG2 antisense RNA 1)

ITFG2-AS1 links:

CACNA1C-AS1 (HGNC:40119): (CACNA1C antisense RNA 1)

CACNA1C-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.020398736).

BP6

Variant 12-2688547-G-A is Benign according to our data. Variant chr12-2688547-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 190626.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000243 (37/152328) while in subpopulation AFR AF = 0.000673 (28/41574). AF 95% confidence interval is 0.000478. There are 0 homozygotes in GnomAd4. There are 16 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 37 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1C	NM_000719.7 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	ENST00000399655.6	NP_000710.5	Q13936-12
CACNA1C	NM_001167623.2 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	ENST00000399603.6	NP_001161095.1	Q13936-37

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CACNA1C	ENST00000399603.6 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	5	NM_001167623.2	ENSP00000382512.1	Q13936-37
CACNA1C	ENST00000399655.6 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	1	NM_000719.7	ENSP00000382563.1	Q13936-12
CACNA1C	ENST00000682544.1 link	c.6224G>A	p.Arg2075Gln	missense_variant	Exon 49 of 50			ENSP00000507184.1	A0A804HIR0
CACNA1C	ENST00000406454.8 link	c.6098G>A	p.Arg2033Gln	missense_variant	Exon 47 of 48	5		ENSP00000385896.3	F5GY28
CACNA1C	ENST00000399634.6 link	c.6065G>A	p.Arg2022Gln	missense_variant	Exon 46 of 47	5		ENSP00000382542.2	E9PDI6
CACNA1C	ENST00000683824.1 link	c.6050G>A	p.Arg2017Gln	missense_variant	Exon 47 of 48			ENSP00000507867.1	A0A804HKC4
CACNA1C	ENST00000347598.9 link	c.6029G>A	p.Arg2010Gln	missense_variant	Exon 48 of 49	1		ENSP00000266376.6	Q13936-11
CACNA1C	ENST00000344100.7 link	c.6008G>A	p.Arg2003Gln	missense_variant	Exon 46 of 47	1		ENSP00000341092.3	Q13936-14
CACNA1C	ENST00000327702.12 link	c.5990G>A	p.Arg1997Gln	missense_variant	Exon 47 of 48	1		ENSP00000329877.7	A0A0A0MR67
CACNA1C	ENST00000399617.6 link	c.5990G>A	p.Arg1997Gln	missense_variant	Exon 47 of 48	5		ENSP00000382526.1	A0A0A0MSA1
CACNA1C	ENST00000682462.1 link	c.5975G>A	p.Arg1992Gln	missense_variant	Exon 46 of 47			ENSP00000507105.1	A0A804HIJ8
CACNA1C	ENST00000683781.1 link	c.5975G>A	p.Arg1992Gln	missense_variant	Exon 46 of 47			ENSP00000507434.1	A0A804HJB6
CACNA1C	ENST00000683840.1 link	c.5975G>A	p.Arg1992Gln	missense_variant	Exon 46 of 47			ENSP00000507612.1	A0A804HJR1
CACNA1C	ENST00000683956.1 link	c.5975G>A	p.Arg1992Gln	missense_variant	Exon 46 of 47			ENSP00000506882.1	A0A804HI37
CACNA1C	ENST00000399638.5 link	c.5969G>A	p.Arg1990Gln	missense_variant	Exon 47 of 48	1		ENSP00000382547.1	Q13936-31
CACNA1C	ENST00000335762.10 link	c.5960G>A	p.Arg1987Gln	missense_variant	Exon 47 of 48	5		ENSP00000336982.5	F5H522
CACNA1C	ENST00000399606.5 link	c.5945G>A	p.Arg1982Gln	missense_variant	Exon 47 of 48	1		ENSP00000382515.1	Q13936-30
CACNA1C	ENST00000399621.5 link	c.5942G>A	p.Arg1981Gln	missense_variant	Exon 46 of 47	1		ENSP00000382530.1	Q13936-24
CACNA1C	ENST00000399637.5 link	c.5942G>A	p.Arg1981Gln	missense_variant	Exon 46 of 47	1		ENSP00000382546.1	Q13936-27
CACNA1C	ENST00000402845.7 link	c.5942G>A	p.Arg1981Gln	missense_variant	Exon 46 of 47	1		ENSP00000385724.3	Q13936-13
CACNA1C	ENST00000399629.5 link	c.5936G>A	p.Arg1979Gln	missense_variant	Exon 46 of 47	1		ENSP00000382537.1	Q13936-32
CACNA1C	ENST00000682336.1 link	c.5927G>A	p.Arg1976Gln	missense_variant	Exon 46 of 47			ENSP00000507898.1	A0A804HKE9
CACNA1C	ENST00000399591.5 link	c.5909G>A	p.Arg1970Gln	missense_variant	Exon 45 of 46	1		ENSP00000382500.1	Q13936-29
CACNA1C	ENST00000399595.5 link	c.5909G>A	p.Arg1970Gln	missense_variant	Exon 45 of 46	1		ENSP00000382504.1	Q13936-25
CACNA1C	ENST00000399649.5 link	c.5903G>A	p.Arg1968Gln	missense_variant	Exon 45 of 46	1		ENSP00000382557.1	Q13936-15
CACNA1C	ENST00000399597.5 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	1		ENSP00000382506.1	Q13936-22
CACNA1C	ENST00000399601.5 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	1		ENSP00000382510.1	Q13936-20
CACNA1C	ENST00000399641.6 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	1		ENSP00000382549.1	Q13936-23
CACNA1C	ENST00000399644.5 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47	1		ENSP00000382552.1	Q13936-21
CACNA1C	ENST00000682835.1 link	c.5885G>A	p.Arg1962Gln	missense_variant	Exon 46 of 47			ENSP00000507282.1	A0A804HIZ0
CACNA1C	ENST00000683482.1 link	c.5876G>A	p.Arg1959Gln	missense_variant	Exon 46 of 47			ENSP00000507169.1	Q13936-35
CACNA1C	ENST00000682686.1 link	c.5852G>A	p.Arg1951Gln	missense_variant	Exon 45 of 46			ENSP00000507309.1	Q13936-19

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000675

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000735

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.0000928

AC:

AN:

247926

AF XY:

0.0000891

show subpopulations

Gnomad AFR exome

AF:

0.000652

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000805

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000896

AC:

131

AN:

1461646

Hom.:

Cov.:

AF XY:

0.0000976

AC XY:

AN XY:

727116

show subpopulations

African (AFR)

AF:

0.000388

AC:

AN:

33480

American (AMR)

AF:

0.000157

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53370

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000953

AC:

106

AN:

1111838

Other (OTH)

AF:

0.0000497

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000243

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.000673

AC:

AN:

41574

American (AMR)

AF:

0.000131

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68020

Other (OTH)

AF:

0.000945

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000148

Hom.:

Bravo

AF:

0.000185

ESP6500AA

AF:

0.000522

AC:

ESP6500EA

AF:

0.000122

AC:

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

CACNA1C-related disorder

Uncertain:1

Jan 26, 2023

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The CACNA1C c.5885G>A variant is predicted to result in the amino acid substitution p.Arg1962Gln. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.071% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-2797713-G-A). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

not specified

Benign:1

Dec 27, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: CACNA1C c.5885G>A (p.Arg1962Gln) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 9.3e-05 in 247926 control chromosomes, predominantly at a frequency of 0.00065 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 65 fold of the estimated maximal expected allele frequency for a pathogenic variant in CACNA1C causing Timothy Syndrome phenotype (1e-05). c.5885G>A has been reported in the literature in individuals affected with Timothy Syndrome. These report(s) do not provide unequivocal conclusions about association of the variant with Timothy Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. ClinVar contains an entry for this variant (Variation ID: 190626). Based on the evidence outlined above, the variant was classified as likely benign. -

Timothy syndrome;C2678478:Brugada syndrome 3;CN260585:Long qt syndrome 8

Benign:1

Aug 27, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Long QT syndrome

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Aug 24, 2022

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

CardioboostArm

Benign

0.000027

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.52

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.023

T;.;.;.;.;.;.;.;.;.;.;.;.;.;.;T;.;.;.;.;T;.;T

Eigen

Benign

-0.72

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.17

M_CAP

Benign

0.079

MetaRNN

Benign

0.020

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

PhyloP100

0.23

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.7

N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;.

REVEL

Benign

0.037

Sift

Benign

0.096

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;.

Sift4G

Benign

0.15

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

Polyphen

0.014, 0.0070, 0.022, 0.0060, 0.037, 0.021, 0.086, 0.0

.;B;B;B;B;B;B;B;B;B;B;B;B;B;B;.;B;B;.;.;.;B;.

Vest4

0.21

MVP

0.36

MPC

0.22

ClinPred

0.026

GERP RS

1.6

gMVP

0.36

Mutation Taster

=89/11

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over