rs546669133

Variant names:

• chr10-18539677-C-G
• NM_201596.3:c.1936C>G

Your query was ambiguous. Multiple possible variants found:

• chr10-18539677-C-G
• chr10-18539677-C-T

Variant summary

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

The NM_201596.3(CACNB2):​c.1936C>G​(p.Arg646Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,038 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CACNB2 NM_201596.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.65

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]

ENSG00000240291 (HGNC:58168):

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 rank	MANE	Protein	UniProt
CACNB2	NM_201596.3	c.1936C>G	p.Arg646Gly	missense_variant	Exon 14 of 14	ENST00000324631.13	NP_963890.2
CACNB2	NM_201590.3	c.1774C>G	p.Arg592Gly	missense_variant	Exon 13 of 13	ENST00000377329.10	NP_963884.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNB2	ENST00000324631.13	c.1936C>G	p.Arg646Gly	missense_variant	Exon 14 of 14	1	NM_201596.3	ENSP00000320025.8
CACNB2	ENST00000377329.10	c.1774C>G	p.Arg592Gly	missense_variant	Exon 13 of 13	1	NM_201590.3	ENSP00000366546.4

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461038 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 726854

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.13	T;.;T;.;.;T;T;.;.;.;T;.;.
Eigen	Uncertain	0.26
Eigen_PC	Benign	0.18
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.97	D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP	Uncertain	0.089	D
MetaRNN	Uncertain	0.61	D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	0.27	D
MutationAssessor	Uncertain	2.0	M;.;.;.;.;.;.;.;.;.;.;.;.
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-1.6	N;N;N;.;N;.;.;N;N;N;.;N;.
REVEL	Uncertain	0.55
Sift	Uncertain	0.0020	D;D;D;.;D;.;.;D;D;D;.;D;.
Sift4G	Uncertain	0.015	D;D;D;.;D;D;D;D;D;D;D;D;.
Polyphen		1.0	D;D;D;.;D;.;.;.;D;D;.;.;.
Vest4		0.85
MutPred		0.28		Loss of MoRF binding (P = 0.0387);.;.;.;.;.;.;.;.;.;.;.;.;
MVP		0.91
MPC		0.90
ClinPred		0.90	D
GERP RS		0.88
Varity_R		0.20
gMVP		0.25

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-18828606;