3-54896788-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_018398.3(CACNA2D3):​c.2286C>T​(p.Asn762=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000127 in 1,613,986 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 (no stars).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000081 ( 0 hom. )

Consequence

CACNA2D3
NM_018398.3 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.580
Variant links:
Genes affected
CACNA2D3 (HGNC:15460): (calcium voltage-gated channel auxiliary subunit alpha2delta 3) 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]
CACNA2D3-AS1 (HGNC:40702): (CACNA2D3 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 3-54896788-C-T is Benign according to our data. Variant chr3-54896788-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3058065.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-0.58 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNA2D3NM_018398.3 linkuse as main transcriptc.2286C>T p.Asn762= synonymous_variant 26/38 ENST00000474759.6
CACNA2D3-AS1NR_046666.1 linkuse as main transcriptn.268G>A non_coding_transcript_exon_variant 2/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNA2D3ENST00000474759.6 linkuse as main transcriptc.2286C>T p.Asn762= synonymous_variant 26/381 NM_018398.3 P1Q8IZS8-1
CACNA2D3ENST00000490478.5 linkuse as main transcriptc.2004C>T p.Asn668= synonymous_variant 25/371 Q8IZS8-2
CACNA2D3-AS1ENST00000471265.1 linkuse as main transcriptn.268G>A non_coding_transcript_exon_variant 2/72
CACNA2D3ENST00000471363.5 linkuse as main transcriptc.*364C>T 3_prime_UTR_variant, NMD_transcript_variant 23/351 Q8IZS8-3

Frequencies

GnomAD3 genomes
AF:
0.000565
AC:
86
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00200
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000160
AC:
40
AN:
249288
Hom.:
0
AF XY:
0.000155
AC XY:
21
AN XY:
135242
show subpopulations
Gnomad AFR exome
AF:
0.00220
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000807
AC:
118
AN:
1461680
Hom.:
0
Cov.:
32
AF XY:
0.0000839
AC XY:
61
AN XY:
727122
show subpopulations
Gnomad4 AFR exome
AF:
0.00257
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000571
AC:
87
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.000685
AC XY:
51
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00202
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000403
Hom.:
0
Bravo
AF:
0.000718
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CACNA2D3-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 02, 2024This 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 v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
5.7
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs35430406; hg19: chr3-54930815; API