2-151880866-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_000726.5(CACNB4):​c.324C>T​(p.Asp108=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000323 in 1,613,646 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00019 ( 2 hom. )

Consequence

CACNB4
NM_000726.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.74
Variant links:
Genes affected
CACNB4 (HGNC:1404): (calcium voltage-gated channel auxiliary subunit beta 4) This gene encodes a member of the beta subunit family of voltage-dependent calcium channel complex proteins. 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. The protein encoded by this locus plays an important role in calcium channel function by modulating G protein inhibition, increasing peak calcium current, controlling the alpha-1 subunit membrane targeting and shifting the voltage dependence of activation and inactivation. Certain mutations in this gene have been associated with idiopathic generalized epilepsy (IGE), juvenile myoclonic epilepsy (JME), and episodic ataxia, type 5. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 2-151880866-G-A is Benign according to our data. Variant chr2-151880866-G-A is described in ClinVar as [Benign]. Clinvar id is 136650.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.74 with no splicing effect.
BS2
High AC in GnomAd4 at 249 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNB4NM_000726.5 linkuse as main transcriptc.324C>T p.Asp108= synonymous_variant 4/14 ENST00000539935.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNB4ENST00000539935.7 linkuse as main transcriptc.324C>T p.Asp108= synonymous_variant 4/141 NM_000726.5 O00305-1

Frequencies

GnomAD3 genomes
AF:
0.00163
AC:
248
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00575
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
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:
0.000479
GnomAD3 exomes
AF:
0.000474
AC:
118
AN:
248998
Hom.:
0
AF XY:
0.000348
AC XY:
47
AN XY:
135090
show subpopulations
Gnomad AFR exome
AF:
0.00730
Gnomad AMR exome
AF:
0.0000871
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.000186
AC:
272
AN:
1461380
Hom.:
2
Cov.:
31
AF XY:
0.000143
AC XY:
104
AN XY:
726980
show subpopulations
Gnomad4 AFR exome
AF:
0.00642
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.000480
GnomAD4 genome
AF:
0.00164
AC:
249
AN:
152266
Hom.:
0
Cov.:
32
AF XY:
0.00145
AC XY:
108
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.00575
Gnomad4 AMR
AF:
0.000523
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:
0.000474
Alfa
AF:
0.000749
Hom.:
0
Bravo
AF:
0.00184

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jun 13, 2016- -
Benign, criteria provided, single submitterclinical testingGeneDxSep 05, 2013This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Idiopathic generalized epilepsy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 18, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
0.98
DANN
Benign
0.42

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

LitVar

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

Other links and lift over

dbSNP: rs147647355; hg19: chr2-152737380; COSMIC: COSV52393868; COSMIC: COSV52393868; API