rs10848683

Variant names:

• chr12-2681964-C-T
• rs10848683
• ENST00000682544.1:c.5693C>T

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_199460.4(CACNA1C):​c.5603C>T​(p.Pro1868Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.796 in 1,596,264 control chromosomes in the GnomAD database, including 511,775 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P1868P) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.71 (40081 hom., cov: 32)
  • Exomes 𝑓: 0.80 (471694 hom.)
• Consequence: CACNA1C NM_199460.4 missense
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:6
• Conservation: PhyloP100: -1.47
• Publications: 38 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: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=1.8183505E-6).
• BP6: Variant 12-2681964-C-T is Benign according to our data. Variant chr12-2681964-C-T is described in ClinVar as Benign. ClinVar VariationId is 136638.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.82 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_199460.4. 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
	CACNA1C	NM_000719.7	MANE Select	c.5445-586C>T		intron	N/A	NP_000710.5
	CACNA1C	NM_001167623.2	MANE Plus Clinical	c.5445-586C>T		intron	N/A	NP_001161095.1	Q13936-37
	CACNA1C	NM_199460.4		c.5603C>T	p.Pro1868Leu	missense	Exon 45 of 50	NP_955630.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CACNA1C	ENST00000682544.1		c.5693C>T	p.Pro1898Leu	missense	Exon 45 of 50	ENSP00000507184.1	A0A804HIR0
	CACNA1C	ENST00000327702.12	TSL:1	c.5459C>T	p.Pro1820Leu	missense	Exon 43 of 48	ENSP00000329877.7	A0A0A0MR67
	CACNA1C	ENST00000399617.6	TSL:5	c.5459C>T	p.Pro1820Leu	missense	Exon 43 of 48	ENSP00000382526.1	A0A0A0MSA1

Frequencies

GnomAD3 genomes AF: 0.713 AC: 107994 AN: 151514 Hom.: 40074 Cov.: 32

Gnomad AFR AF: 0.491

Gnomad AMI AF: 0.631

Gnomad AMR AF: 0.731

Gnomad ASJ AF: 0.821

Gnomad EAS AF: 0.594

Gnomad SAS AF: 0.842

Gnomad FIN AF: 0.854

Gnomad MID AF: 0.731

Gnomad NFE AF: 0.817

Gnomad OTH AF: 0.711

GnomAD2 exomes AF: 0.777 AC: 193185 AN: 248494 AF XY: 0.787

Gnomad AFR exome AF: 0.485

Gnomad AMR exome AF: 0.769

Gnomad ASJ exome AF: 0.815

Gnomad EAS exome AF: 0.591

Gnomad FIN exome AF: 0.852

Gnomad NFE exome AF: 0.813

Gnomad OTH exome AF: 0.789

GnomAD4 exome AF: 0.804 AC: 1162010 AN: 1444634 Hom.: 471694 Cov.: 30 AF XY: 0.807 AC XY: 580629 AN XY: 719614

African (AFR) AF: 0.473 AC: 15699 AN: 33158

American (AMR) AF: 0.764 AC: 34128 AN: 44678

Ashkenazi Jewish (ASJ) AF: 0.815 AC: 21199 AN: 26018

East Asian (EAS) AF: 0.576 AC: 22831 AN: 39612

South Asian (SAS) AF: 0.843 AC: 72356 AN: 85812

European-Finnish (FIN) AF: 0.848 AC: 45124 AN: 53234

Middle Eastern (MID) AF: 0.776 AC: 3572 AN: 4602

European-Non Finnish (NFE) AF: 0.820 AC: 900383 AN: 1097810

Other (OTH) AF: 0.782 AC: 46718 AN: 59710

GnomAD4 genome AF: 0.712 AC: 108036 AN: 151630 Hom.: 40081 Cov.: 32 AF XY: 0.716 AC XY: 53006 AN XY: 74058

African (AFR) AF: 0.491 AC: 20320 AN: 41368

American (AMR) AF: 0.731 AC: 11142 AN: 15240

Ashkenazi Jewish (ASJ) AF: 0.821 AC: 2847 AN: 3468

East Asian (EAS) AF: 0.593 AC: 3037 AN: 5120

South Asian (SAS) AF: 0.842 AC: 4057 AN: 4820

European-Finnish (FIN) AF: 0.854 AC: 8980 AN: 10512

Middle Eastern (MID) AF: 0.731 AC: 212 AN: 290

European-Non Finnish (NFE) AF: 0.817 AC: 55369 AN: 67800

Other (OTH) AF: 0.712 AC: 1500 AN: 2106

Alfa AF: 0.786 Hom.: 157522

Bravo AF: 0.692

TwinsUK AF: 0.814 AC: 3018

ALSPAC AF: 0.807 AC: 3112

ESP6500AA AF: 0.504 AC: 1581

ESP6500EA AF: 0.821 AC: 5884

ExAC AF: 0.772 AC: 92945

Asia WGS AF: 0.708 AC: 2459 AN: 3478

EpiCase AF: 0.817

EpiControl AF: 0.807

ClinVar

ClinVar submissions

Significance: Benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	4	not specified (4)
-	-	1	not provided (1)
-	-	1	Timothy syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.070
BayesDel_addAF	Benign	-0.56	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	0.16
DANN	Benign	0.54
DEOGEN2	Benign	0.014	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.00024	N
MetaRNN	Benign	0.0000018	T
MetaSVM	Benign	-0.95	T
PhyloP100		-1.5
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.19
Sift	Benign	0.24	T
Sift4G	Benign	0.10	T
Vest4		0.066
ClinPred		0.0050	T
GERP RS		1.6
Mutation Taster		=100/0	polymorphism (auto)

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: rs10848683; hg19: chr12-2791130; COSMIC: COSV59713321; COSMIC: COSV59713321;