rs780901801

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_000722.4(CACNA2D1):​c.1993A>G​(p.Thr665Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000102 in 1,576,024 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T665T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

CACNA2D1
NM_000722.4 missense

Scores

2
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.07

Publications

4 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
  • 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
    Inheritance: Unknown, AD Classification: LIMITED, NO_KNOWN Submitted by: Genomics England PanelApp, Ambry Genetics
  • Brugada syndrome 1
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.77

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA2D1
NM_000722.4
MANE Select
c.1993A>Gp.Thr665Ala
missense
Exon 25 of 39NP_000713.2P54289-2
CACNA2D1
NM_001366867.1
c.2029A>Gp.Thr677Ala
missense
Exon 25 of 39NP_001353796.1P54289-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA2D1
ENST00000356860.8
TSL:1 MANE Select
c.1993A>Gp.Thr665Ala
missense
Exon 25 of 39ENSP00000349320.3P54289-2
CACNA2D1
ENST00000443883.2
TSL:5
c.2029A>Gp.Thr677Ala
missense
Exon 25 of 39ENSP00000409374.2H0Y715
CACNA2D1
ENST00000957014.1
c.2014A>Gp.Thr672Ala
missense
Exon 25 of 39ENSP00000627073.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152028
Hom.:
0
Cov.:
32
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000122
AC:
3
AN:
246130
AF XY:
0.0000150
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000470
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000913
AC:
13
AN:
1423996
Hom.:
0
Cov.:
25
AF XY:
0.0000113
AC XY:
8
AN XY:
710504
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32726
American (AMR)
AF:
0.00
AC:
0
AN:
44476
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25780
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39226
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85218
European-Finnish (FIN)
AF:
0.0000189
AC:
1
AN:
52888
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5654
European-Non Finnish (NFE)
AF:
0.0000111
AC:
12
AN:
1079000
Other (OTH)
AF:
0.00
AC:
0
AN:
59028
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152028
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41414
American (AMR)
AF:
0.00
AC:
0
AN:
15218
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.558
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000676
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Brugada syndrome (1)
-
1
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
0.00044
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.86
D
M_CAP
Benign
0.049
D
MetaRNN
Pathogenic
0.77
D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
7.1
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-2.5
N
REVEL
Benign
0.24
Sift
Benign
0.39
T
Sift4G
Benign
0.082
T
Polyphen
1.0
D
Vest4
0.81
MutPred
0.40
Gain of helix (P = 0.132)
MVP
0.33
MPC
1.3
ClinPred
0.94
D
GERP RS
4.6
Varity_R
0.26
gMVP
0.69
Mutation Taster
=36/64
disease causing

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

Other links and lift over

dbSNP: rs780901801; hg19: chr7-81603831; API