rs369255950

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2

The NM_000719.7(CACNA1C):c.1487G>A(p.Arg496Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000273 in 1,612,530 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R496W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

CACNA1C
NM_000719.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 7.00

Publications

0 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 Gene-Disease associations (from GenCC):

Timothy syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Orphanet
neurodevelopmental disorder with hypotonia, language delay, and skeletal defects with or without seizures
Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
long QT syndrome
Inheritance: AD Classification: MODERATE Submitted by: ClinGen
long QT syndrome 8
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
Brugada syndrome
Inheritance: AD Classification: SUPPORTIVE, NO_KNOWN Submitted by: ClinGen, Orphanet
Brugada syndrome 3
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
short QT syndrome
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: ClinGen, Ambry Genetics

CACNA1C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6

Variant 12-2556956-G-A is Benign according to our data. Variant chr12-2556956-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 190640.

BS2

High AC in GnomAd4 at 6 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000719.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNA1C	NM_000719.7	MANE Select	c.1487G>A	p.Arg496Gln	missense	Exon 11 of 47	NP_000710.5
CACNA1C	NM_001167623.2	MANE Plus Clinical	c.1487G>A	p.Arg496Gln	missense	Exon 11 of 47	NP_001161095.1	Q13936-37
CACNA1C	NM_199460.4		c.1487G>A	p.Arg496Gln	missense	Exon 11 of 50	NP_955630.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNA1C	ENST00000399603.6	TSL:5 MANE Plus Clinical	c.1487G>A	p.Arg496Gln	missense	Exon 11 of 47	ENSP00000382512.1	Q13936-37
CACNA1C	ENST00000399655.6	TSL:1 MANE Select	c.1487G>A	p.Arg496Gln	missense	Exon 11 of 47	ENSP00000382563.1	Q13936-12
CACNA1C	ENST00000682544.1		c.1577G>A	p.Arg526Gln	missense	Exon 11 of 50	ENSP00000507184.1	A0A804HIR0

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152024

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000441

AC:

AN:

249244

AF XY:

0.0000592

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1460506

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

726644

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39698

South Asian (SAS)

AF:

0.000232

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000900

AC:

AN:

1110776

Other (OTH)

AF:

0.0000497

AC:

AN:

60332

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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:

0.0000395

AC:

AN:

152024

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74240

show subpopulations

African (AFR)

AF:

0.0000484

AC:

AN:

41348

American (AMR)

AF:

0.00

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.000208

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2078

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

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:

0.000154

Hom.:

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.000520

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000496

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cardiovascular phenotype (1)

Long QT syndrome (1)

not provided (1)

not specified (1)

Timothy syndrome;C2678478:Brugada syndrome 3;CN260585:Long QT syndrome 8 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

CardioboostArm

Benign

0.0062

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.020

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Pathogenic

0.99

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.68

MetaSVM

Uncertain

0.71

MutationAssessor

Benign

1.6

PhyloP100

7.0

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-1.4

REVEL

Pathogenic

0.72

Sift

Benign

0.11

Sift4G

Benign

0.13

Polyphen

0.98

Vest4

0.81

MVP

0.96

MPC

1.7

ClinPred

0.21

GERP RS

5.0

gMVP

0.87

Mutation Taster

=67/33

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over