Genetic Variant NM_000725.4:c.421C>T (chr12-48824682-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000725.4(CACNB3):c.421C>T(p.Pro141Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,774 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign 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. P141A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CACNB3
NM_000725.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.70

Publications

1 publications found

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]

CACNB3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.060864687).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000725.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNB3	NM_000725.4	MANE Select	c.421C>T	p.Pro141Ser	missense	Exon 5 of 13	NP_000716.2
CACNB3	NM_001206916.2		c.418C>T	p.Pro140Ser	missense	Exon 5 of 13	NP_001193845.1	P54284-4
CACNB3	NM_001206917.2		c.382C>T	p.Pro128Ser	missense	Exon 5 of 13	NP_001193846.1	P54284-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNB3	ENST00000301050.7	TSL:1 MANE Select	c.421C>T	p.Pro141Ser	missense	Exon 5 of 13	ENSP00000301050.2	P54284-1
CACNB3	ENST00000536187.6	TSL:2	c.418C>T	p.Pro140Ser	missense	Exon 5 of 13	ENSP00000444160.2	P54284-4
CACNB3	ENST00000861431.1		c.418C>T	p.Pro140Ser	missense	Exon 5 of 13	ENSP00000531490.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251164

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461774

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111920

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000458

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.050

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.055

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.28

FATHMM_MKL

Uncertain

0.76

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.020

MetaRNN

Benign

0.061

MetaSVM

Benign

-0.74

MutationAssessor

Benign

-1.2

PhyloP100

1.7

PrimateAI

Uncertain

0.60

PROVEAN

Benign

2.1

REVEL

Benign

0.20

Sift

Benign

0.88

Sift4G

Benign

0.77

Polyphen

0.010

Vest4

0.15

MVP

0.67

MPC

0.43

ClinPred

0.38

GERP RS

4.8

Varity_R

0.044

gMVP

0.36

Mutation Taster

=92/8

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over