rs1279028766

Variant names:

• chr12-2691116-G-A
• rs1279028766
• NM_000719.7:c.6334G>A

Your query was ambiguous. Multiple possible variants found:

• chr12-2691116-G-A
• chr12-2691116-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000719.7(CACNA1C):​c.6334G>A​(p.Glu2112Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,459,624 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 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. E2112Q) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: CACNA1C NM_000719.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.13
• Publications: 0 publications found

Genes affected

CACNA1C (HGNC:1390): (calcium voltage-gated channel subunit alpha1 C) This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. The alpha-1 subunit consists of 24 transmembrane segments and forms the pore through which ions pass into the cell. The calcium channel consists of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. There are multiple isoforms of each of these proteins, either encoded by different genes or the result of alternative splicing of transcripts. The protein encoded by this gene binds to and is inhibited by dihydropyridine. Alternative splicing results in many transcript variants encoding different proteins. Some of the predicted proteins may not produce functional ion channel subunits. [provided by RefSeq, Oct 2012]

ITFG2-AS1 (HGNC:53128): (ITFG2 antisense RNA 1)

CACNA1C-AS1 (HGNC:40119): (CACNA1C antisense RNA 1)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17569917).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1C	NM_000719.7	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	ENST00000399655.6	NP_000710.5
CACNA1C	NM_001167623.2	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	ENST00000399603.6	NP_001161095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNA1C	ENST00000399603.6	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	5	NM_001167623.2	ENSP00000382512.1
CACNA1C	ENST00000399655.6	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	1	NM_000719.7	ENSP00000382563.1
CACNA1C	ENST00000682544.1	c.6673G>A	p.Glu2225Lys	missense_variant	Exon 50 of 50			ENSP00000507184.1
CACNA1C	ENST00000406454.8	c.6547G>A	p.Glu2183Lys	missense_variant	Exon 48 of 48	5		ENSP00000385896.3
CACNA1C	ENST00000399634.6	c.6514G>A	p.Glu2172Lys	missense_variant	Exon 47 of 47	5		ENSP00000382542.2
CACNA1C	ENST00000683824.1	c.6499G>A	p.Glu2167Lys	missense_variant	Exon 48 of 48			ENSP00000507867.1
CACNA1C	ENST00000347598.9	c.6478G>A	p.Glu2160Lys	missense_variant	Exon 49 of 49	1		ENSP00000266376.6
CACNA1C	ENST00000344100.7	c.6457G>A	p.Glu2153Lys	missense_variant	Exon 47 of 47	1		ENSP00000341092.3
CACNA1C	ENST00000327702.12	c.6439G>A	p.Glu2147Lys	missense_variant	Exon 48 of 48	1		ENSP00000329877.7
CACNA1C	ENST00000399617.6	c.6439G>A	p.Glu2147Lys	missense_variant	Exon 48 of 48	5		ENSP00000382526.1
CACNA1C	ENST00000682462.1	c.6424G>A	p.Glu2142Lys	missense_variant	Exon 47 of 47			ENSP00000507105.1
CACNA1C	ENST00000683781.1	c.6424G>A	p.Glu2142Lys	missense_variant	Exon 47 of 47			ENSP00000507434.1
CACNA1C	ENST00000683840.1	c.6424G>A	p.Glu2142Lys	missense_variant	Exon 47 of 47			ENSP00000507612.1
CACNA1C	ENST00000683956.1	c.6424G>A	p.Glu2142Lys	missense_variant	Exon 47 of 47			ENSP00000506882.1
CACNA1C	ENST00000399638.5	c.6418G>A	p.Glu2140Lys	missense_variant	Exon 48 of 48	1		ENSP00000382547.1
CACNA1C	ENST00000335762.10	c.6409G>A	p.Glu2137Lys	missense_variant	Exon 48 of 48	5		ENSP00000336982.5
CACNA1C	ENST00000399606.5	c.6394G>A	p.Glu2132Lys	missense_variant	Exon 48 of 48	1		ENSP00000382515.1
CACNA1C	ENST00000399621.5	c.6391G>A	p.Glu2131Lys	missense_variant	Exon 47 of 47	1		ENSP00000382530.1
CACNA1C	ENST00000399637.5	c.6391G>A	p.Glu2131Lys	missense_variant	Exon 47 of 47	1		ENSP00000382546.1
CACNA1C	ENST00000402845.7	c.6391G>A	p.Glu2131Lys	missense_variant	Exon 47 of 47	1		ENSP00000385724.3
CACNA1C	ENST00000399629.5	c.6385G>A	p.Glu2129Lys	missense_variant	Exon 47 of 47	1		ENSP00000382537.1
CACNA1C	ENST00000682336.1	c.6376G>A	p.Glu2126Lys	missense_variant	Exon 47 of 47			ENSP00000507898.1
CACNA1C	ENST00000399591.5	c.6358G>A	p.Glu2120Lys	missense_variant	Exon 46 of 46	1		ENSP00000382500.1
CACNA1C	ENST00000399595.5	c.6358G>A	p.Glu2120Lys	missense_variant	Exon 46 of 46	1		ENSP00000382504.1
CACNA1C	ENST00000399649.5	c.6352G>A	p.Glu2118Lys	missense_variant	Exon 46 of 46	1		ENSP00000382557.1
CACNA1C	ENST00000399597.5	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	1		ENSP00000382506.1
CACNA1C	ENST00000399601.5	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	1		ENSP00000382510.1
CACNA1C	ENST00000399641.6	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	1		ENSP00000382549.1
CACNA1C	ENST00000399644.5	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47	1		ENSP00000382552.1
CACNA1C	ENST00000682835.1	c.6334G>A	p.Glu2112Lys	missense_variant	Exon 47 of 47			ENSP00000507282.1
CACNA1C	ENST00000683482.1	c.6325G>A	p.Glu2109Lys	missense_variant	Exon 47 of 47			ENSP00000507169.1
CACNA1C	ENST00000682686.1	c.6301G>A	p.Glu2101Lys	missense_variant	Exon 46 of 46			ENSP00000507309.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459624 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725856

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

African (AFR) AF: 0.00 AC: 0 AN: 33438

American (AMR) AF: 0.00 AC: 0 AN: 44622

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26068

East Asian (EAS) AF: 0.00 AC: 0 AN: 39644

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86090

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53222

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5572

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110746

Other (OTH) AF: 0.00 AC: 0 AN: 60222

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
CardioboostArm	Benign	0.000063
BayesDel_addAF	Benign	-0.057	T
BayesDel_noAF	Benign	-0.32
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.020	T;.;.;.;.;.;.;.;.;.;.;.;.;.;.;T;.;.;.;.;T;.;T
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.080
FATHMM_MKL	Uncertain	0.90	D
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.18	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.93	T
PhyloP100		4.1
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-0.87	N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;.
REVEL	Benign	0.084
Sift	Benign	0.087	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;.
Sift4G	Benign	0.16	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen		0.030, 0.23, 0.10, 0.20, 0.082, 0.33, 0.043, 0.12, 0.69, 0.34, 0.78, 0.010	.;B;B;B;B;B;B;B;B;B;B;B;B;P;B;.;B;P;.;.;.;B;.
Vest4		0.32
MVP		0.64
MPC		0.23
ClinPred		0.82	D
GERP RS		3.6
gMVP		0.60
Mutation Taster		=92/8	polymorphism

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

Other links and lift over

dbSNP: rs1279028766; hg19: chr12-2800282; COSMIC: COSV59758289; COSMIC: COSV59758289;