rs1555878994

Variant names:

• chr12-2605112-C-A
• NM_000719.7:c.2992C>A

Your query was ambiguous. Multiple possible variants found:

• chr12-2605112-C-A
• chr12-2605112-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_000719.7(CACNA1C):​c.2992C>A​(p.Arg998Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,408 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CACNA1C NM_000719.7 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.678

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]

CACNA1C-AS3 (HGNC:40117): (CACNA1C antisense RNA 3)

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.23).
• BP7: Synonymous conserved (PhyloP=0.678 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1C	NM_000719.7	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	ENST00000399655.6	NP_000710.5
CACNA1C	NM_001167623.2	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	ENST00000399603.6	NP_001161095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNA1C	ENST00000399603.6	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	5	NM_001167623.2	ENSP00000382512.1
CACNA1C	ENST00000399655.6	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1	NM_000719.7	ENSP00000382563.1
CACNA1C	ENST00000682544.1	c.3142C>A	p.Arg1048Arg	synonymous_variant	Exon 24 of 50			ENSP00000507184.1
CACNA1C	ENST00000406454.8	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 48	5		ENSP00000385896.3
CACNA1C	ENST00000399634.6	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	5		ENSP00000382542.2
CACNA1C	ENST00000683824.1	c.3157C>A	p.Arg1053Arg	synonymous_variant	Exon 24 of 48			ENSP00000507867.1
CACNA1C	ENST00000347598.9	c.3052C>A	p.Arg1018Arg	synonymous_variant	Exon 24 of 49	1		ENSP00000266376.6
CACNA1C	ENST00000344100.7	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000341092.3
CACNA1C	ENST00000327702.12	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 48	1		ENSP00000329877.7
CACNA1C	ENST00000399617.6	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 48	5		ENSP00000382526.1
CACNA1C	ENST00000682462.1	c.3082C>A	p.Arg1028Arg	synonymous_variant	Exon 23 of 47			ENSP00000507105.1
CACNA1C	ENST00000683781.1	c.3082C>A	p.Arg1028Arg	synonymous_variant	Exon 23 of 47			ENSP00000507434.1
CACNA1C	ENST00000683840.1	c.3082C>A	p.Arg1028Arg	synonymous_variant	Exon 23 of 47			ENSP00000507612.1
CACNA1C	ENST00000683956.1	c.3082C>A	p.Arg1028Arg	synonymous_variant	Exon 23 of 47			ENSP00000506882.1
CACNA1C	ENST00000399638.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 48	1		ENSP00000382547.1
CACNA1C	ENST00000335762.10	c.3067C>A	p.Arg1023Arg	synonymous_variant	Exon 24 of 48	5		ENSP00000336982.5
CACNA1C	ENST00000399606.5	c.3052C>A	p.Arg1018Arg	synonymous_variant	Exon 24 of 48	1		ENSP00000382515.1
CACNA1C	ENST00000399621.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382530.1
CACNA1C	ENST00000399637.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382546.1
CACNA1C	ENST00000402845.7	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000385724.3
CACNA1C	ENST00000399629.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382537.1
CACNA1C	ENST00000682336.1	c.3067C>A	p.Arg1023Arg	synonymous_variant	Exon 24 of 47			ENSP00000507898.1
CACNA1C	ENST00000399591.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 46	1		ENSP00000382500.1
CACNA1C	ENST00000399595.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 46	1		ENSP00000382504.1
CACNA1C	ENST00000399649.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 46	1		ENSP00000382557.1
CACNA1C	ENST00000399597.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382506.1
CACNA1C	ENST00000399601.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382510.1
CACNA1C	ENST00000399641.6	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382549.1
CACNA1C	ENST00000399644.5	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47	1		ENSP00000382552.1
CACNA1C	ENST00000682835.1	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 47			ENSP00000507282.1
CACNA1C	ENST00000683482.1	c.2983C>A	p.Arg995Arg	synonymous_variant	Exon 23 of 47			ENSP00000507169.1
CACNA1C	ENST00000682686.1	c.2992C>A	p.Arg998Arg	synonymous_variant	Exon 23 of 46			ENSP00000507309.1
CACNA1C	ENST00000480911.6	n.*1599C>A		non_coding_transcript_exon_variant	Exon 21 of 27	5		ENSP00000437936.2
CACNA1C	ENST00000480911.6	n.*1599C>A		3_prime_UTR_variant	Exon 21 of 27	5		ENSP00000437936.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461408 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727004

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: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.23
CADD	Benign	9.4
DANN	Benign	0.86

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: chr12-2714278;