rs202022529

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_172364.5(CACNA2D4):​c.2921+7G>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000477 in 1,613,880 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 2 hom. )

Consequence

CACNA2D4
NM_172364.5 splice_region, intron

Scores

2
Splicing: ADA: 0.00004731
2

Clinical Significance

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

Conservation

PhyloP100: 0.332

Publications

1 publications found
Variant links:
Genes affected
CACNA2D4 (HGNC:20202): (calcium voltage-gated channel auxiliary subunit alpha2delta 4) This gene encodes a member of the alpha-2/delta subunit family, a protein in the voltage-dependent calcium channel complex. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization and consist of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. Various versions of each of these subunits exist, either expressed from similar genes or the result of alternative splicing. Research on a highly similar protein in rabbit suggests the protein described in this record is cleaved into alpha-2 and delta subunits. Alternate transcriptional splice variants of this gene have been observed but have not been thoroughly characterized. [provided by RefSeq, Jul 2008]
CACNA2D4 Gene-Disease associations (from GenCC):
  • inherited retinal dystrophy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • retinal cone dystrophy 4
    Inheritance: AR, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), G2P
  • cone-rod dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 12-1800379-C-G is Benign according to our data. Variant chr12-1800379-C-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 96534.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAdExome4 at 2 AR,Unknown,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_172364.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA2D4
NM_172364.5
MANE Select
c.2921+7G>C
splice_region intron
N/ANP_758952.4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA2D4
ENST00000382722.10
TSL:1 MANE Select
c.2921+7G>C
splice_region intron
N/AENSP00000372169.4
CACNA2D4
ENST00000586184.5
TSL:5
c.2921+7G>C
splice_region intron
N/AENSP00000465060.1
CACNA2D4
ENST00000587995.5
TSL:5
c.2846+7G>C
splice_region intron
N/AENSP00000465372.1

Frequencies

GnomAD3 genomes
AF:
0.00246
AC:
375
AN:
152178
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00859
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
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:
0.0000294
Gnomad OTH
AF:
0.00287
GnomAD2 exomes
AF:
0.000619
AC:
153
AN:
247096
AF XY:
0.000477
show subpopulations
Gnomad AFR exome
AF:
0.00873
Gnomad AMR exome
AF:
0.000348
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000361
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.000270
AC:
394
AN:
1461584
Hom.:
2
Cov.:
32
AF XY:
0.000239
AC XY:
174
AN XY:
727092
show subpopulations
African (AFR)
AF:
0.00956
AC:
320
AN:
33480
American (AMR)
AF:
0.000335
AC:
15
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53394
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000899
AC:
10
AN:
1111762
Other (OTH)
AF:
0.000762
AC:
46
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
22
45
67
90
112
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00247
AC:
376
AN:
152296
Hom.:
1
Cov.:
32
AF XY:
0.00215
AC XY:
160
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.00859
AC:
357
AN:
41542
American (AMR)
AF:
0.000719
AC:
11
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68024
Other (OTH)
AF:
0.00284
AC:
6
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
16
33
49
66
82
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.000291
Hom.:
0
Bravo
AF:
0.00300
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not specified (2)
-
-
1
not provided (1)
-
-
1
Retinal cone dystrophy 4 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
7.3
DANN
Benign
0.48
PhyloP100
0.33
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000047
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.030
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: rs202022529; hg19: chr12-1909545; API