rs10740993

Positions:

• chr10-18153553-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_201596.3(CACNB2):​c.213+2578C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.501 in 150,672 control chromosomes in the GnomAD database, including 19,272 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.50 (19272 hom., cov: 28)
• Consequence: CACNB2 NM_201596.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.43

Genes affected

CACNB2 (HGNC:1402): (calcium voltage-gated channel auxiliary subunit beta 2) This gene encodes a subunit of a voltage-dependent calcium channel protein that is a member of the voltage-gated calcium channel superfamily. The gene product was originally identified as an antigen target in Lambert-Eaton myasthenic syndrome, an autoimmune disorder. Mutations in this gene are associated with Brugada syndrome. Alternatively spliced variants encoding different isoforms have been described. [provided by RefSeq, Feb 2013]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.596 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNB2	NM_201596.3	c.213+2578C>T		intron_variant		ENST00000324631.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNB2	ENST00000324631.13	c.213+2578C>T		intron_variant		1	NM_201596.3

Frequencies

GnomAD3 genomes AF: 0.501 AC: 75427 AN: 150554 Hom.: 19236 Cov.: 28

Gnomad AFR AF: 0.602

Gnomad AMI AF: 0.366

Gnomad AMR AF: 0.431

Gnomad ASJ AF: 0.417

Gnomad EAS AF: 0.594

Gnomad SAS AF: 0.480

Gnomad FIN AF: 0.557

Gnomad MID AF: 0.434

Gnomad NFE AF: 0.449

Gnomad OTH AF: 0.472

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.501 AC: 75513 AN: 150672 Hom.: 19272 Cov.: 28 AF XY: 0.505 AC XY: 37086 AN XY: 73426

Gnomad4 AFR AF: 0.602

Gnomad4 AMR AF: 0.431

Gnomad4 ASJ AF: 0.417

Gnomad4 EAS AF: 0.593

Gnomad4 SAS AF: 0.480

Gnomad4 FIN AF: 0.557

Gnomad4 NFE AF: 0.449

Gnomad4 OTH AF: 0.476

Alfa AF: 0.452 Hom.: 30407

Bravo AF: 0.493

Asia WGS AF: 0.511 AC: 1777 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
CADD	Benign	0.20
DANN	Benign	0.18

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

Other links and lift over

dbSNP: rs10740993; hg19: chr10-18442482;