NM_000722.4:c.831C>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_000722.4(CACNA2D1):c.831C>G(p.Ser277Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000122 in 1,609,488 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 (★★). Synonymous variant affecting the same amino acid position (i.e. S277S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00061 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

CACNA2D1
NM_000722.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.513

Publications

2 publications found

Variant links:

Genes affected

CACNA2D1 (HGNC:1399): (calcium voltage-gated channel auxiliary subunit alpha2delta 1) The preproprotein encoded by this gene is cleaved into multiple chains that comprise the alpha-2 and delta subunits of the voltage-dependent calcium channel complex. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. Mutations in this gene can cause cardiac deficiencies, including Brugada syndrome and short QT syndrome. Alternate splicing results in multiple transcript variants, some of which may lack the delta subunit portion. [provided by RefSeq, Nov 2014]

CACNA2D1 Gene-Disease associations (from GenCC):

short QT syndrome
Inheritance: AD Classification: SUPPORTIVE, NO_KNOWN Submitted by: ClinGen, Orphanet
Brugada syndrome
Inheritance: AD, Unknown Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, Genomics England PanelApp
genetic developmental and epileptic encephalopathy
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
developmental and epileptic encephalopathy 110
Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P
Brugada syndrome 1
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

CACNA2D1 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 (BayesDel_noAF=-0.76).

BP6

Variant 7-82060476-G-C is Benign according to our data. Variant chr7-82060476-G-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 518555.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.513 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000722.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CACNA2D1	NM_000722.4	MANE Select	c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 39	NP_000713.2
CACNA2D1	NM_001366867.1		c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 39	NP_001353796.1
CACNA2D1	NM_001302890.2		c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 11	NP_001289819.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CACNA2D1	ENST00000356860.8	TSL:1 MANE Select	c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 39	ENSP00000349320.3
CACNA2D1	ENST00000423588.1	TSL:1	c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 11	ENSP00000405395.1
CACNA2D1	ENST00000443883.2	TSL:5	c.831C>G	p.Ser277Ser	synonymous	Exon 10 of 39	ENSP00000409374.2

Frequencies

GnomAD3 genomes

AF:

0.000600

AC:

AN:

150108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00198

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000471

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:

0.00

Gnomad OTH

AF:

0.000972

GnomAD2 exomes

AF:

0.000132

AC:

AN:

250638

AF XY:

0.0000812

show subpopulations

Gnomad AFR exome

AF:

0.00172

Gnomad AMR exome

AF:

0.0000869

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000713

AC:

104

AN:

1459260

Hom.:

Cov.:

AF XY:

0.0000510

AC XY:

AN XY:

726084

show subpopulations

African (AFR)

AF:

0.00219

AC:

AN:

33388

American (AMR)

AF:

0.000224

AC:

AN:

44658

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26034

East Asian (EAS)

AF:

0.00

AC:

AN:

39526

South Asian (SAS)

AF:

0.00

AC:

AN:

86220

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52996

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

9.01e-7

AC:

AN:

1110440

Other (OTH)

AF:

0.000315

AC:

AN:

60252

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.448

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:

0.000612

AC:

AN:

150228

Hom.:

Cov.:

AF XY:

0.000614

AC XY:

AN XY:

73244

show subpopulations

African (AFR)

AF:

0.00202

AC:

AN:

41050

American (AMR)

AF:

0.000470

AC:

AN:

14882

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3448

East Asian (EAS)

AF:

0.00

AC:

AN:

4966

South Asian (SAS)

AF:

0.00

AC:

AN:

4746

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10188

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67666

Other (OTH)

AF:

0.000961

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

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:

0.00

Hom.:

Bravo

AF:

0.000710

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Oct 05, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Brugada syndrome

Benign:1

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Cardiovascular phenotype

Benign:1

Jan 15, 2016

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.

CACNA2D1-related disorder

Benign:1

Jul 13, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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 v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

0.058

(source)

DANN

Benign

0.55

PhyloP100

-0.51

Mutation Taster

=99/1

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

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over