10-18150970-C-A

Position:

• chr10-18150970-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_201596.3(CACNB2):​c.208C>A​(p.Arg70Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000704 in 1,419,614 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R70C) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 28)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: CACNB2 NM_201596.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.38

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 Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNB2	NM_201596.3	c.208C>A	p.Arg70Ser	missense_variant	2/14	ENST00000324631.13	NP_963890.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CACNB2	ENST00000324631.13	c.208C>A	p.Arg70Ser	missense_variant	2/14	1	NM_201596.3	ENSP00000320025.8

Frequencies

GnomAD3 genomes Cov.: 28

GnomAD4 exome AF: 7.04e-7 AC: 1 AN: 1419614 Hom.: 0 Cov.: 29 AF XY: 0.00000141 AC XY: 1 AN XY: 706912

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000172

GnomAD4 genome Cov.: 28

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Uncertain	0.085	D
BayesDel_noAF	Benign	-0.12
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.19	T;.;T;.;.;.
Eigen	Benign	-0.16
Eigen_PC	Benign	0.024
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D;D;D;.;D;D
M_CAP	Benign	0.073	D
MetaRNN	Uncertain	0.43	T;T;T;T;T;T
MetaSVM	Benign	-0.39	T
MutationAssessor	Benign	1.0	L;L;.;.;.;.
PrimateAI	Pathogenic	0.85	D
PROVEAN	Uncertain	-2.8	D;D;N;.;.;D
REVEL	Uncertain	0.35
Sift	Benign	0.040	D;D;D;.;.;D
Sift4G	Benign	0.12	T;T;D;.;.;T
Polyphen		0.042	B;B;B;.;.;B
Vest4		0.87
MutPred		0.26		Gain of phosphorylation at R70 (P = 0.0101);Gain of phosphorylation at R70 (P = 0.0101);Gain of phosphorylation at R70 (P = 0.0101);.;.;.;
MVP		0.90
MPC		0.24
ClinPred		0.87	D
GERP RS		5.0
Varity_R		0.32
gMVP		0.41

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: rs760538597; hg19: chr10-18439899;