Variant 2-151870575-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000726.5(CACNB4):c.655A>T(p.Met219Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,188 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M219V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

CACNB4
NM_000726.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.99

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]

CACNB4 links:

ENSG00000283228 (HGNC:):

ENSG00000283228 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.902

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNB4	NM_000726.5 linkuse as main transcript	c.655A>T	p.Met219Leu	missense_variant	8/14	ENST00000539935.7	NP_000717.2	O00305-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CACNB4	ENST00000539935.7 linkuse as main transcript	c.655A>T	p.Met219Leu	missense_variant	8/14	1	NM_000726.5	ENSP00000438949.1		O00305-1
ENSG00000283228	ENST00000637559.1 linkuse as main transcript	n.553A>T		non_coding_transcript_exon_variant	7/12	5		ENSP00000489697.1		A0A1B0GTH0

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.91

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Pathogenic

0.14

CADD

Pathogenic

DANN

Uncertain

0.98

DEOGEN2

Benign

0.33

T;.;T;T;.;T;T;.;T;.;T;T;.;.;.;T;T;.;.;T;T;T;.;.;.;T;.

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.81

T;T;.;.;T;T;.;T;T;D;T;T;T;T;.;T;T;T;T;T;D;T;D;T;D;T;T

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.90

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.72

MutationAssessor

Pathogenic

3.1

M;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;M;.;.;.

PrimateAI

Uncertain

0.77

PROVEAN

Uncertain

-2.7

D;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.;D;.;.;.;.;.;D;.;.;.

REVEL

Pathogenic

0.81

Sift

Uncertain

0.0030

D;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.;D;.;.;.;.;.;D;.;.;.

Sift4G

Uncertain

0.0040

D;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.;D;.;.;.;D;.;D;.;.;.

Polyphen

0.78

P;.;.;.;.;.;.;.;.;.;.;.;.;P;.;.;.;.;.;.;.;.;.;.;.;.;.

Vest4

0.71

MutPred

0.80

Loss of catalytic residue at V215 (P = 0.0356);.;.;.;Loss of catalytic residue at V215 (P = 0.0356);.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;Loss of catalytic residue at V215 (P = 0.0356);.;.;.;

MVP

0.91

MPC

1.5

ClinPred

0.97

GERP RS

5.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.68

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over