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GeneBe

12-48824700-A-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000725.4(CACNB3):​c.439A>T​(p.Ile147Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,613,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

CACNB3
NM_000725.4 missense

Scores

5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.19
Variant links:
Genes affected
CACNB3 (HGNC:1403): (calcium voltage-gated channel auxiliary subunit beta 3) This gene encodes a regulatory beta subunit of the voltage-dependent calcium channel. Beta subunits are composed of five domains, which contribute to the regulation of surface expression and gating of calcium channels and may also play a role in the regulation of transcription factors and calcium transport. [provided by RefSeq, Oct 2011]

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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 (MetaRNN=0.045947433).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNB3NM_000725.4 linkuse as main transcriptc.439A>T p.Ile147Phe missense_variant 5/13 ENST00000301050.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNB3ENST00000301050.7 linkuse as main transcriptc.439A>T p.Ile147Phe missense_variant 5/131 NM_000725.4 P1P54284-1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151510
Hom.:
0
Cov.:
30
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:
0.000585
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000756
AC:
19
AN:
251318
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00103
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000131
AC:
192
AN:
1461494
Hom.:
0
Cov.:
33
AF XY:
0.000140
AC XY:
102
AN XY:
727070
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00484
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000198
AC:
3
AN:
151510
Hom.:
0
Cov.:
30
AF XY:
0.0000270
AC XY:
2
AN XY:
73944
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000585
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000824
AC:
10
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 29, 2022The c.439A>T (p.I147F) alteration is located in exon 5 (coding exon 5) of the CACNB3 gene. This alteration results from a A to T substitution at nucleotide position 439, causing the isoleucine (I) at amino acid position 147 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
19
DANN
Benign
0.97
Eigen
Benign
-0.14
Eigen_PC
Benign
0.058
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.94
D;D;D;D;D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.046
T;T;T;T;T
MetaSVM
Benign
-0.59
T
MutationTaster
Benign
0.98
D;D;D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-2.4
N;N;N;N;N
REVEL
Benign
0.19
Sift
Uncertain
0.014
D;D;D;D;D
Sift4G
Benign
0.17
T;T;T;T;T
Polyphen
0.022
.;.;.;B;.
Vest4
0.16
MutPred
0.26
.;.;Gain of catalytic residue at S152 (P = 0.0221);Gain of catalytic residue at S152 (P = 0.0221);.;
MVP
0.81
MPC
0.71
ClinPred
0.14
T
GERP RS
4.5
Varity_R
0.16
gMVP
0.40

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: rs777325450; hg19: chr12-49218483; API