NM_000725.4:c.451C>T

Variant names:

• chr12-48824712-C-T
• rs745694472
• NM_000725.4:c.451C>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000725.4(CACNB3):​c.451C>T​(p.Arg151Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,676 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 30)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: CACNB3 NM_000725.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.43
• Publications: 0 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CACNB3	NM_000725.4	MANE Select	c.451C>T	p.Arg151Cys	missense	Exon 5 of 13	NP_000716.2
	CACNB3	NM_001206916.2		c.448C>T	p.Arg150Cys	missense	Exon 5 of 13	NP_001193845.1	P54284-4
	CACNB3	NM_001206917.2		c.412C>T	p.Arg138Cys	missense	Exon 5 of 13	NP_001193846.1	P54284-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CACNB3	ENST00000301050.7	TSL:1 MANE Select	c.451C>T	p.Arg151Cys	missense	Exon 5 of 13	ENSP00000301050.2	P54284-1
	CACNB3	ENST00000547818.5	TSL:5	c.-58C>T		5_prime_UTR_premature_start_codon_gain	Exon 5 of 9	ENSP00000448137.1	F8VUW8
	CACNB3	ENST00000550064.5	TSL:5	c.-78C>T		5_prime_UTR_premature_start_codon_gain	Exon 5 of 9	ENSP00000448074.1	F8VU10

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151818 Hom.: 0 Cov.: 30

Gnomad AFR AF: 0.00

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: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251350 AF XY: 0.0000221

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: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000123 AC: 18 AN: 1461858 Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8 AN XY: 727234

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000144 AC: 16 AN: 1111988

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151818 Hom.: 0 Cov.: 30 AF XY: 0.0000135 AC XY: 1 AN XY: 74120

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41302

American (AMR) AF: 0.00 AC: 0 AN: 15246

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5134

South Asian (SAS) AF: 0.00 AC: 0 AN: 4786

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10566

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68006

Other (OTH) AF: 0.00 AC: 0 AN: 2084

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00233887), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.0000574 Hom.: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Pathogenic	0.14
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.62	D
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.90	D
M_CAP	Pathogenic	0.41	D
MetaRNN	Uncertain	0.69	D
MetaSVM	Uncertain	0.53	D
MutationAssessor	Uncertain	2.4	M
PhyloP100		3.4
PrimateAI	Uncertain	0.79	T
PROVEAN	Pathogenic	-4.4	D
REVEL	Uncertain	0.59
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.014	D
Polyphen		1.0	D
Vest4		0.50
MVP		0.94
MPC		1.5
ClinPred		0.98	D
GERP RS		4.8
Varity_R		0.46
gMVP		0.63
Mutation Taster		=77/23	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs745694472; hg19: chr12-49218495; COSMIC: COSV99974603; COSMIC: COSV99974603;