rs33912216

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_172364.5(CACNA2D4):​c.3330C>T​(p.Gly1110Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0968 in 1,612,800 control chromosomes in the GnomAD database, including 8,584 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.11 ( 991 hom., cov: 33)
Exomes 𝑓: 0.096 ( 7593 hom. )

Consequence

CACNA2D4
NM_172364.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -5.38

Publications

9 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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 12-1793739-G-A is Benign according to our data. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-1793739-G-A is described in CliVar as Benign. Clinvar id is 197051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-5.38 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.183 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA2D4NM_172364.5 linkc.3330C>T p.Gly1110Gly synonymous_variant Exon 38 of 38 ENST00000382722.10 NP_758952.4 Q7Z3S7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA2D4ENST00000382722.10 linkc.3330C>T p.Gly1110Gly synonymous_variant Exon 38 of 38 1 NM_172364.5 ENSP00000372169.4 Q7Z3S7-1
CACNA2D4ENST00000587995.5 linkc.3255C>T p.Gly1085Gly synonymous_variant Exon 37 of 37 5 ENSP00000465372.1 K7EJY1
CACNA2D4ENST00000588077.5 linkc.3138C>T p.Gly1046Gly synonymous_variant Exon 38 of 38 5 ENSP00000468530.1 Q7Z3S7-4
CACNA2D4ENST00000536846.6 linkc.768C>T p.Gly256Gly synonymous_variant Exon 12 of 12 5 ENSP00000468167.1 K7ER98
CACNA2D4ENST00000538027.6 linkc.765C>T p.Gly255Gly synonymous_variant Exon 12 of 12 5 ENSP00000443038.2 X6RLY7
CACNA2D4ENST00000538450.5 linkc.720C>T p.Gly240Gly synonymous_variant Exon 11 of 11 2 ENSP00000446341.1 B4DVU4
CACNA2D4ENST00000444595.6 linkn.*1514C>T non_coding_transcript_exon_variant Exon 37 of 37 1 ENSP00000403371.2 E7EUE0
CACNA2D4ENST00000537784.5 linkn.*523C>T non_coding_transcript_exon_variant Exon 15 of 15 1 ENSP00000440231.2 X6RLU5
CACNA2D4ENST00000545595.6 linkn.*523C>T non_coding_transcript_exon_variant Exon 10 of 10 1 ENSP00000442329.2 Q7Z3S7-7
CACNA2D4ENST00000585385.5 linkn.*523C>T non_coding_transcript_exon_variant Exon 11 of 11 5 ENSP00000467333.1 K7EIY9
CACNA2D4ENST00000444595.6 linkn.*1514C>T 3_prime_UTR_variant Exon 37 of 37 1 ENSP00000403371.2 E7EUE0
CACNA2D4ENST00000537784.5 linkn.*523C>T 3_prime_UTR_variant Exon 15 of 15 1 ENSP00000440231.2 X6RLU5
CACNA2D4ENST00000545595.6 linkn.*523C>T 3_prime_UTR_variant Exon 10 of 10 1 ENSP00000442329.2 Q7Z3S7-7
CACNA2D4ENST00000585385.5 linkn.*523C>T 3_prime_UTR_variant Exon 11 of 11 5 ENSP00000467333.1 K7EIY9

Frequencies

GnomAD3 genomes
AF:
0.107
AC:
16322
AN:
152152
Hom.:
992
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.120
Gnomad AMI
AF:
0.105
Gnomad AMR
AF:
0.189
Gnomad ASJ
AF:
0.0689
Gnomad EAS
AF:
0.0648
Gnomad SAS
AF:
0.119
Gnomad FIN
AF:
0.111
Gnomad MID
AF:
0.0759
Gnomad NFE
AF:
0.0851
Gnomad OTH
AF:
0.115
GnomAD2 exomes
AF:
0.114
AC:
28140
AN:
245934
AF XY:
0.111
show subpopulations
Gnomad AFR exome
AF:
0.126
Gnomad AMR exome
AF:
0.232
Gnomad ASJ exome
AF:
0.0767
Gnomad EAS exome
AF:
0.0537
Gnomad FIN exome
AF:
0.111
Gnomad NFE exome
AF:
0.0862
Gnomad OTH exome
AF:
0.112
GnomAD4 exome
AF:
0.0957
AC:
139733
AN:
1460530
Hom.:
7593
Cov.:
32
AF XY:
0.0956
AC XY:
69486
AN XY:
726606
show subpopulations
African (AFR)
AF:
0.122
AC:
4088
AN:
33470
American (AMR)
AF:
0.228
AC:
10196
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.0757
AC:
1976
AN:
26114
East Asian (EAS)
AF:
0.0528
AC:
2095
AN:
39696
South Asian (SAS)
AF:
0.130
AC:
11234
AN:
86224
European-Finnish (FIN)
AF:
0.111
AC:
5860
AN:
52790
Middle Eastern (MID)
AF:
0.104
AC:
587
AN:
5664
European-Non Finnish (NFE)
AF:
0.0880
AC:
97842
AN:
1111558
Other (OTH)
AF:
0.0970
AC:
5855
AN:
60334
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
6243
12485
18728
24970
31213
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
3802
7604
11406
15208
19010
<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:
0.107
AC:
16334
AN:
152270
Hom.:
991
Cov.:
33
AF XY:
0.109
AC XY:
8149
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.120
AC:
4973
AN:
41538
American (AMR)
AF:
0.189
AC:
2886
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.0689
AC:
239
AN:
3468
East Asian (EAS)
AF:
0.0638
AC:
330
AN:
5176
South Asian (SAS)
AF:
0.119
AC:
576
AN:
4828
European-Finnish (FIN)
AF:
0.111
AC:
1183
AN:
10614
Middle Eastern (MID)
AF:
0.0714
AC:
21
AN:
294
European-Non Finnish (NFE)
AF:
0.0851
AC:
5789
AN:
68018
Other (OTH)
AF:
0.114
AC:
241
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
756
1512
2268
3024
3780
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
174
348
522
696
870
<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:
0.100
Hom.:
682
Bravo
AF:
0.115
Asia WGS
AF:
0.102
AC:
356
AN:
3478
EpiCase
AF:
0.0842
EpiControl
AF:
0.0893

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
May 07, 2014
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Retinal cone dystrophy 4 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.030
DANN
Benign
0.73
PhyloP100
-5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=99/1
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs33912216; hg19: chr12-1902905; COSMIC: COSV54959742; COSMIC: COSV54959742; API